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Shop the best prices on 472 great value under $20 prisms. Shopping for prisms is easy with Fruugo, with SALE discounts, offers and savings on Anqing Cheng Bu. Buy prisms online safely with Fruugo, with secure payment and fast shipping to New Zealand.

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4Pcs Clear Triangular Prism for Rainbow Lights Crystal Optical Prisms Glass Physics Teaching Refracted Light Spectrum
$18.95 Save $8.00 RRP: $26.95
Educational Transparent Right Angle Prism Glass for Science Learning 1 Piece
$20.95 Save $18.00 RRP: $38.95
Corner Cube Prism Optical Glass Coated Polished High Accuracy 25.4mm Trihedral Retroreflector
$20.95 Save $11.00 RRP: $31.95
Optical Equilateral Rainbow Triangular Prism Glass Physics Experiment Children Student Photography Triangular Prism
$10.95 Save $6.00 RRP: $16.95
Archimedes Instrument Demonstrator Physics Experiment Physics Experiment Teaching Model Education Tool for Classroom Children
$4.95 Save $3.00 RRP: $7.95
3pcs Foil for Teacher Presentation and Physics Teaching Experiments Equipment
$20.95 Save $7.00 RRP: $27.95
4pcs Clear Triangular Prism For Rainbow Lights Crystal Optical Prisms Glass Physics Teaching Refrac
$10.95
Optical Equilateral Rainbow Triangular Prism Glass Physics Experiment
$10.95
100/80/60/40mm Horseshoe U-shaped Magnet Children Physics Experiment Tool Toy Jikaix
$6.95 Save $6.00 RRP: $12.95
Prism Optical Glass Pyramid 40mm High Rectangular Polyhedron
$10.95 Save $2.00 RRP: $12.95
1 Set Optical Lens Science Classroom Optics Kits Physics Demonstration Tools
$17.95 Save $71.05 RRP: $89.00
2Pcs Optical Glass Triangular Prism for Physics Teaching with Stand
$19.95 Save $10.00 RRP: $29.95
Double Helix Dna Model Science Teaching Aids for Students Educational Teaching Tool
$19.95 Save $79.05 RRP: $99.00
Lenses Light Spectrum Prism Photography Prism Effects Physics Prism Glass Triangular Prisms
$18.95 Save $75.05 RRP: $94.00
2Pcs Clear Triangular Prism,6&1In Lengths Optical Prisms for Teaching
$15.95 Save $11.00 RRP: $26.95
Acrylic Optical Experiment Set Triangular Prism Convex Lens Concave Mirror 8 PCS for Lens Imaging Source Science Physics
$15.95 Save $2.00 RRP: $17.95
Optical Hexagonal Prism for Photography Seven-Color Reflects Sunlight 15X62mm Light Guide Prism Physical Experiment
$17.95
Optical Hexagonal Prism For Photography Seven-color Reflects Sunlight 15x62mm Light Guide Prism Physical Experiment
$8.95
Optical Experiment Folding Semicircle Protractor Plane Mirror Reflection Physics Optics Teaching Equipment for School
$20.95 Save $1.00 RRP: $21.95
Optical Glass 40mm High Rectangular Polyhedron Suitable for Teaching Experiments
$10.95 Save $4.00 RRP: $14.95
DIY Physics Electromagnet Experiment Equipment Teaching Kits
$11.95 Save $5.00 RRP: $16.95
Magic Crystal Optic Prism Cube Multi Color Toy and Desktop Decoration Gift
$20.95 Save $21.00 RRP: $41.95
2Pcs Clear Triangular Prism,6&1In Lengths Optical Prisms for Teaching
$19.95 Save $14.00 RRP: $33.95
Colored optical glass X-cube prism RGB dispersion prism for physics teaching research and decorative art education
$18.95 Save $11.00 RRP: $29.95
Science Classroom Optics Kits Optical Lens For Teaching Experiments Lenses Physics Laboratory 42mm 6Pcs
$15.95 Save $16.00 RRP: $31.95
Physical Experiment Equipment Physics Teaching Prop for Lenz' Law Demo 1Pcs
$20.95 Save $20.00 RRP: $40.95
1Pc Handheld Spectroscope Light Emission Spectroscopy Spectrum Physics Science Hobby
$17.95
Magic Prism Cube, Mini K9 Crystal Glass Prism Cube, Rainbow Color
$20.95 Save $21.00 RRP: $41.95
Prism Optical Glass Pyramid 40mm High Rectangular Polyhedron
$9.95
Physics Teaching Tools Kids Periscope Optical Experiment Toy Blue Plastic For Physics Classroom 1Pcs
$17.95 Save $10.00 RRP: $27.95
100/80/60/40mm Horseshoe U-shaped Magnet Children Physics Experiment Tool Toy
$14.95 Save $16.00 RRP: $30.95
Double Helix Dna Model Science Teaching Aids for Students Educational Teaching Tool
$20.95 Save $63.05 RRP: $84.00