CMY Optic Prism Cube15MM Optical Glass PrismChildren's Science ExperimentRGB Dispersion Six-Sided Bright Light Combine Cube for Physics and DecorationGreat Gift for Kids and Adults -2PC-

?(?'?'?) Hi, Friend, Welcome to my warm small shop! We'll try our best to make you have a satisfactory shopping experience! I wish you a happy shopping,We provide various kinds of great products to you, you are trustworthy,Get anything you want?If you have any questions. We will reply to you with in 24 hours,offer you our best services. ?SPECIFICATIONS: 100% brand new and high quality   Material: Glass Size: about 15x15x15mm Weight: About 10-30g Uses: For teaching or research tool or for decoration ?Package includes: 1/2xCube