Description: Package Includes: cubic , ball, triangle prisms, Triangular cone ,Which is a beautiful gift for your family or friendsEssential Photography Tools: Optical photography prisms allow beginners to instantly express their creativity and enhance photography effects;High Quality Materials: Made of high quality optical materials, high light , fine polishing,Exquisite Workmanship : Fine workmanship,clear, great home office decor, craft decorations and collectiblesWidely Uses: Use the light transmission and refraction function of glass as photography props, scientific research, physical experiment teaching, and cultivate children's interesti of science Size Chart: Cubic(L*W*H):5cm/1.97inchBall:Diameter:5cm/1.97inchTriangle Prisms:Length:5cm/1.97inch 6cm/2.36inch Side Length:3cm/1.18inchTriangular Cone :6cm/2.36inch Package Includes: 4Optical Photography prisms Note: Please allow slightly errors due to manual measurement and different monitors.