13,500 Lines/inch Diffraction Grating Sheet - Double Axis [1 Foot x 6 Inches]

$11.89

Diffraction Grating sheet 13,500 lines/inch - Double Axis 1Ft x 6 Inches

$19.99

Diffraction Grating sheet 500 lines per mm Linear 5ft

$19.95

13,500 Lines/inch Diffraction Grating Sheet - Double Axis [60" x 6" Roll]

$12.99

Diffraction Grating Slide-Linear 1000 Lines/mm 2x2-Pack of 10

$22.99

Rainbow Symphony Diffraction Grating Glasses - Linear 500 Line/millimeters, Package of 25

$15.49

Rainbow Symphony Diffraction Grating Slides, Linear, 1000 Line/Millimeters, Made in USA, Package of 25

$9.99

EISCO Economy Spectroscope Tube - 500 Lines/mm Grating - Eisco Labs

$49.99

200 g Assorted Colors Mosaic Tiles Crystal Mosaic for Home Decoration Crafts Supply DIY Art Projects, Shaped Ceramic, 0.5x2 cm, Full Color Mixing

$24.99

Single Slit Double Slits Combination Trellis Design Optics Elements Interference Diffraction Grating Sheet Optical Physical Experiment Kit

$11.99

Micro Graph Paper Notebook: 3mm Grid Small Squares for Architects and Engineering Drafting - 100 Pages (50 Sheets) - 8.5 x 11 Inches

$24.26

M-D Building Products 57042 2-Feet by 3-Feet .020-Inch Thick Cloverleaf Aluminum Sheet

$19.99

3M KTS-DL1 Design Line Knifeless Tape - 50m (164ft)

$8.99

Prime-Line P 7940 Bulk Screen Spline, 0.185-In. Diameter, 25 ft., Black (1 Roll)

$10.88

United Scientific DFG600 Diffraction Gratings for SPECT01 Spectrometer

$699

Prime-Line P 7944 Bulk Screen Spline, 0.185 In. Diameter, 250 ft Roll, Black (1 Roll)

$4.99

#18 X 500 feet Polypropylene Mason Line (Yellow)

$32.48

Prime-Line P 7571 0.165 In. x 250 ft. Roll Black Spline (1 Roll)

$4.98

Isometric Notebook: Detailed Light Grid (1/4" and 1/8") for Easy 3D Drawing, Drafting, Technical Drawing and Sketching | 8.5" x 11" | 110 pages Graph Paper

$45.46

Origami Paper 500 sheets Kaleidoscope Patterns 6" (15 cm): Tuttle Origami Paper: Double-Sided Origami Sheets Printed with 12 Different Designs (Instructions for 6 Projects Included)

$13.49

Perfect Surveyor's Open-Reel Tape Measure - 330 ft. / 100m

$16.99

LICHAMP Tape Measure 25 ft, 6 Pack Bulk Easy Read Measuring Tape Retractable with Fractions 1/8, Measurement Tape 25-Foot by 1-Inch

$19.98

Amlong Crystal 6 inch Optical Glass Triangular Prism for Teaching Light Spectrum Physics and Photo Photography Prism, 150mm

$95.99

Graph paper 1/3 Inch Grid Notebook: 1/3 Inch Squares 120 pages, Thick and light lines Grid.

$126.5

Mr. Pen Graph Paper, Grid Paper, 4x4 (4 Squares per inch), 11"x8.5", 55 Sheet

$19.98

3M ScotchCast Plus Casting Tape 3" x 4 Yards, White, Single Roll

$73.69

Land Open Reel Fiberglass Tape Measure - 100FT/30M by 1/2-Inch, Inch/Metric Scale, Heavy Duty Tape for Runway and Engineer Survey (100FT)

$74.33

3M Knifeless Finish Line Vinyl Wrap Cutting Tape 50 Meter Roll (164 Ft) for Stripes and More

$5.99

Grating Spectroscopes and How to Use Them (The Patrick Moore Practical Astronomy Series)

$65.62

3m 82004X ScotchCast Plus Casting Tape 4" x 4 Yards - Pink - 1 Roll

$47.16

Land Open Reel Fiberglass Tape Measure - 330FT/100M by 1/2-Inch, Inch/Metric Scale, Heavy Duty Tape for Runway and Engineer Survey (330FT)

$74.33

LEXIVON 2 in 1 Digital Laser Tape Measure | 130ft/40m Laser Distance Meter Display On Backlit LCD Screen with 16ft/5m AutoLock Measuring Tape | Ft/Inch/Fractions/M/mm(LX-201)

$13.82

Eye Chart, Upgraded Snellen Eye Chart for Eye Exams 10 Feet, 14x8 Inches Plastic Low Vision Eye Charts Wall Chart with Metal Eyelet for Kids Gifts Wall Decoration (10 Feet Test Distance)

$10.99

DOAY Blue Painters Tape 6 Inches x 45 Yards - 3D Printing Tape - Multi Surface Use - Single Roll

$19.49

Tru-Ray Construction Paper, 10 Vibrant Colors, 9" x 12", 50 Sheets

$11.88

ARTIMUSES 7/32 Inch Black Backed Copper Foil Tape for Stained Glass,36 Yards (2Rolls)

$4.69

ARTIMUSES 7/32 Inch Silver Backed Copper Foil Tape for Stained Glass,36 Yards (2Rolls)

$15.77

Eye Chart, Upgraded Snellen Eye Chart for Eye Exams 20 Feet, 22x11 Inches Plastic Low Vision Eye Charts Wall Chart with Metal Eyelet for Kids Gifts Wall Decoration (20 Feet Test Distance)

$16.97

GRAPH PAPER 1 INCH SQUARES: GRAPH PAPER 1 INCH GRID 8X10 SQUARES 8.5X11 LARGE SHEETS WITH 120 BLANK PAGES

$133

LAND Open Reel Fiberglass Tape Measure - 165FT/50M by 1/2-Inch, Inch/Metric Scale, Heavy Duty Tape for Runway and Engineer Survey (165FT)

$28

200g Mosaic Tiles Mosaic Stained Glass g for Home Decoration DIY Arts & Craft, Shaped Ceramic, 0.5x2 cm, White

$20.99

Bienfang Sketching & Tracing Paper Roll, White, 36 Inches x 50 Yards - for Drawing, Trace, Sketch, Sewing Pattern

$19.37

3m 82003X ScotchCast Plus Casting Tape 3" x 4 Yards - Pink - 1 Roll

$16.95

TRM Manufacturing HD12 Weatherall Painter's Plastic 0.31 Mil Clear Hi Density Sheeting, 1 Box of 400 Feet Long by 12 Feet Wide

$201.1

Bienfang Sketching & Tracing Paper Roll, White, 12 Inches x 50 Yards - for Drawing, Trace, Sketch, Sewing Pattern

$9.99

DOAY Blue Painters Tape 5 Inches x 45 Yards - 3D Printing Tape - Multi Surface Use - Single Roll

$17.69

3M Scotchcast Plus 82003A Casting Tape, 3 Inches X 4 Yards -, Roll Black 1 Count

$9.94

DOAY Blue Painters Tape 1 Inches x 30 Yards - Multi Surface Use - 120 Yards Total - 4 Rolls

$10.9

VViViD Wrap Cut Vinyl Wrap Edge Cutting Detailer Tape 200ft (1 roll)

$5.99

Painter's Mate Green Painter's Tape, 1.88 Inches x 60 Yards, 3 Pack (240456)

$10.9

Laser Engraver Foil - Peel and Stick Laser Engraveable Foil - 6"x25 feet

$17.42

YEZHET 1/4 Inch Silver Backed Copper Foil Tape 2Rolls for Stained Glass,36 Yards

$18.76

Cole-Parmer-821062 Monarch Instrument MI153209 Roll of Reflective Tape for use with Optical Tachometers, 5 ft Long and 1/2" Wide

$148.34

1-5-10mm Graph Paper: A4 1/5/10 mm Graph Paper Notebook, 100 Pages, 90gsm White | 1mm (0.1cm) Squared Grid Ruled Graphing Pad for Architect, Engineer, ... Engineering Students, etc. - Black Cover

$5.99

Bienfang Sketching & Tracing Paper Roll, White, 12 Inches x 50 Yards (2-Pack) - for Drawing, Trace, Sketch, Sewing Pattern

$5.99

DOAY Blue Painters Tape 3/4 Inches x 30 Yards - Multi Surface Use - 120 Yards Total - 4 Rolls

$17.99

Origami Paper 500 sheets Marbled Patterns 6" (15 cm): Tuttle Origami Paper: Double-Sided Origami Sheets Printed with 12 Different Designs (Instructions for 6 Projects Included)

$12.57

Origami Paper 500 sheets Vibrant Colors 6" (15 cm): Tuttle Origami Paper: Double-Sided Origami Sheets Printed with 12 Different Designs (Instructions for 6 Projects Included)

$17.29

Total 400 yd, 6 Pack 1.18 in x 66.6 yd - Heavy Duty Packing Tape with Dispenser Combo, Clear Shipping Tape, Packaging Tape, Package Tape for Shipping Moving Storage and Mailing

$10.99

Tru-Ray® Heavyweight Construction Paper, Yellow, 12" x 18", 50 Sheets

$11.88