500 Lines/mm Diffraction Grating Sheet Single Linear axis [1 Foot x 6 Inches]

$22.99

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

$19.99

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

$11.89

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

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

$5.99

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

$8.99

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

$11.99

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

$5.99

#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

Transparent Wave Curtain Tape Pleat Tape for Curtains Drape Curtain Tape Ripple Fold Tape 10 Yards/100 Hooks Drapery Tape (25 Meter)

$7.99

Snellen Chart with Red Green Lines 10 Feet

$17.35

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

$16.99

3 Yards 1.27 Meters Silk Screen Printing Fabric Mesh Screen Printing Mesh Wide High Tension Mesh Making Ink Supplies 110 Mesh（43T）

$26.69

DEWALT TAPE MEASRE BLK/YLW 25FT

$20.98

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

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

$18.76

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

$15.77

3 Yards 1.27 Meters Silk Screen Printing Fabric Mesh Screen Printing Mesh Wide High Tension Mesh Making Ink Supplies (120 Mesh_48T)

$18.99

3 Yards 1.27 Meters Silk Screen Printing Fabric Mesh Screen Printing Mesh Wide High Tension Mesh Making Ink Supplies (160 Mesh_64T)

$18.99

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

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

$4.69

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

CynKen 1x100x100mm Titanium Plate Sheet TC4/GR5 Sheet

$31.49

20mm RGB Dispersion Prism Optical Glass X-Cube Prism for Teaching Light Spectrum Physics- Gift of Light

$17.99

Wave Fold Curtain Tape and Hooks-10 Yards/100 Hooks

$14.98

Diffraction, Fourier Optics and Imaging

$53.54

GGR Supplies T.R.U. FIL-835B/D Transparent Bi-Directional Filament Strapping Tape: 3 in. x 60 yds.

$23.95

Komelon N6200 Open Reel Long Steel Tape Measure, 200-Feet

$15.99

Transparent Wave Curtain Tape Pleat Tape for Curtains Drape Curtain Tape Ripple Fold Tape 10 Yards/100 Hooks Drapery Tape (6 Yard)

$11.99

CynKen 1x200x200mm Titanium Plate Sheet TC4/GR5 Sheet

$20.99

VViViD Knifeless Vinyl Wrap Cutting Tape Finishing Line 10M Plus 3M Toolkit (10m (30ft) roll + Detailer)

$17.99

520nm Laser Module Industrial Green Laser Line Laser Diode adjustable focus 5mw Laser Line

$11.16

VViViD Wrap Cut 32ft (10M) Knifeless Vinyl Wrap Edge Cutting Detailer Tape Including Yellow Detailer Squeegee

$17.99

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

$4.99

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

$10.88

Komelon 6622 Open Reel Fiberglass Tape Measure, 200-Feet, Green

$12.99

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

$10.9

165ft/50m Laser Measure Ft/in/M Switching LM50 Laser Measurement Tool Devices with 2 Bubble Levels Distance Meter,Large Backlit LCD

$16.99

KSEIBI 302940 Closed Reel Long Tape Measure 165 ft Flexible Fiberglass Double Face Printing Inch/Metric for Land, Yard Distance Measurement, and Construction Work (165ft / 50m)

$15.5

35 Colors 4200 Strips Paper Quilling Strips Set Width 5mm Length 54cm Quilling Art Strips for DIY Craft

$6.99

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

$24.26

100 Sheets Gold Foil Paper Art Gold Foil Sheets Gilding Brush Thin Gold Leaf Sheets Gold Foil Paper Craft for Arts Painting Gilding Crafting Decoration, 5.5 x 5.5 Inches

$6.99

Transparent Wave Curtain Tape Pleat Tape for Curtains Drape Curtain Tape Ripple Fold Tape 10 Yards/100 Hooks Drapery Tape (10 Yard)

$17.99

Wow Gaffers Tape 2 Inch Black - 50 Yards, Residue Free, Non-Reflective & Heavy-Duty - Professional Grade Gaff Tape - Ideal for Photography Backdrop, Cables, Cords & Floor Taping

$26.33

Keson OTRS1810200 Fiberglass Measuring Tape with Double Hook, Speed Rewind (Graduation: ft., in, 1/8 & ft., 1/10, 1/100), 200-Foot

$49.88

6 Rolls Bulletin Board Borders, 240Ft Scalloped Rolled Border Trim with Wavy Line Design Yellow, Green, Red, Blue, Black, White Decoration for School, Classroom & Offices, 40Ft per Roll

$9.99

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

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

$11.88

Keson OTRS18100 Fiberglass Measuring Tape with Hook, Speed Rewind (Graduations: ft., in. 1/8), 100-Foot

$72.99

Kiprim Laser Distance Measure High Accuracy 165ft LD50E Laser Tape Measure 50M Compact Laser Measurement Tool with Larger Backlit LCD Display,ft/m/in Switching,Bubble Level

$34.97

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

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

$65.62

CynKen 4x100x100mm Titanium Plate Sheet TC4/GR5 Sheet About 0.16"x4"x4"

$18

60 Feet Bulletin Board Borders, Pure Blue Scalloped Rolled Border Trim with Wavy Line Design for School, Classroom & Offices

$9.99