6 PCS Physical Optical Acrylic Convex Concave Lens Set, Triangular Semicircular Rectangular Prism Physics Demonstration Tools Equipment for Physics Teaching Students Lab Photography Science

Features - Color: transparent - Material: acrylic - Made of acrylic materials, these optical lens are professional and durable for long time to use. - With different shape, can effectively explain the knowledge of optics with experiments. - It can stimulate students' cognitive ability in physics, also can be a in school teaching. - Good tool to show how different aspects of lenses and light passing through and bending. - Easy to use and clean, save your time and efforts to enable you to have satisfying using feeling. Package Include: 6 x Acrylic optical lens Note: Please allow slight dimension difference due to different manual measurement.