Description: <p>[Educational Tool]:Physics Optical Experiment Set is designed to clearly demonstrate the phenomenon that light changes its propagation direction when it moves from 1 medium to another,causes refraction at the of different media,and the phenomenon that light returns to its original direction in the material when it propagates to different materials</p><p>[Material]:Refraction and Reflection of Light is made of pp,ensuring long term use and wear resistance</p><p>[Compact Size]:Convex Lens and Small Hole Imaging Experiment's packaging size is 13cmx9cmx4cm,which is compact and easy to store or carry,suitable for classroom demonstrations or learning courses</p><p>[Package Contents]:Each package comes with a complete Teaching Demonstration Equipment that provides all the necessary components for a comprehensive physical for optics experiment</p><p>[Versatile Use]:Teaching Aid is an teaching aid for secondary school physics education,making complex optical principles easy to understand through hands on experiments</p> Specification: Size_Chart: <p>Packing size:13cmx9cmx4cm/5.12inch x 3.54inch x 1.57inch</p> Note: <p>1.This is not infant toy,please take away from children to avoid eating.</p><p>2.Please allow slightly errors 1-2cm differences due to manual measurement.</p> Package_Includes: <p>1 Physics Optical Experiment Set</p>