Quick Answer: Blocks Acrylic, Rectangular are clear PMMA (acrylic) blocks with all faces polished, made to ±0.5 mm in 75 x 50 x 12 mm, 100 x 60 x 20 mm and 115 x 65 x 20 mm sizes.
Last updated: October 2026
Key Features
Optical-grade PMMA (acrylic)
High transparency
All faces polished
Tolerance ±0.5 mm
Three sizes: 75 x 50 x 12 mm, 100 x 60 x 20 mm, 115 x 65 x 20 mm
Technical Specifications
Specification
Value
Material
PMMA / acrylic, optical grade
Faces
All polished
Tolerance
±0.5 mm
Sizes
75 x 50 x 12 mm; 100 x 60 x 20 mm; 115 x 65 x 20 mm
HS code
9023.00
About This Product
A rectangular block is used in ray-tracing practicals to show refraction at a plane surface, measure angles of incidence and refraction, find the refractive index of acrylic and observe lateral displacement of a ray. Polished faces let a ray box beam pass cleanly in and out. Schools, colleges and institutes in United Kingdom, Mauritius, Peru, Chile, Uruguay and Philippines can order the Blocks Acrylic, Rectangular from Educational Instrument.
Frequently Asked Questions
What sizes are the Blocks Acrylic, Rectangular?
75 x 50 x 12 mm, 100 x 60 x 20 mm and 115 x 65 x 20 mm, each made to ±0.5 mm.
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