Features_x000D__x000D_- Color: white._x000D_- Material: acrylic._x000D_- Size:6.00X3.00X1.00cm/2.36X1.18X0.39inch._x000D_- Made of acrylic materials, these optical lens are professional and durable for long time to use._x000D_- With different shape, can effectively explain the knowledge of optics with experiments._x000D_- It can stimulate students' cognitive ability in physics, also can be a good helper in school teaching._x000D_- Good tool to show how different aspects of lenses and light passing through and bending._x000D_- Easy to use and clean, save your time and efforts to enable you to have satisfying using feeling.Packing list: 5 x optical lens Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store