Lenses Cylindrical Experiment Kit these 5mm thick pattern blocks

these 5mm thick pattern blocks are tough enough to withstand years of classroom use

with arteries

Premium Quality: Laser Optical Demo is made of high-grade construction all the way through

A FUN LEARNING ACTIVITY -- Children love to create their own colorful shapes with these learning boards

Lenses Cylindrical Experiment Kit these 5mm thick pattern blocksSet of 4 Lenses. Premium Quality: Cylindrical Lens is made of high grade construction all the way through, excellent build quality and proven reliability across the range. Designed for use in professional laboratories but is an ideal choice for science classrooms and household use. If you need custom order with different sizes design, please contact us.