Eachine 5cm 10cm 15cm 20cm Triple Triangular Prism Physics Teaching Light Spectrum

5cm 10cm 15cm 20cm Triple Triangular Prism Physics Teaching Light Spectrum Description: 5cm 10cm 15cm 20cm Triple Triangular Prism Physics Teaching Light Spectrum Feature: 1.Precise cuttings, offer good reflections and color seperation 2.Brand new and durable . Specification: Material: K9 Optical Glass Prism Length: 5cm 10cm 15cm 20cm Product Size: 30*30*30mm Package Included: 1 x Triple Prism + 1 Decent Gift Box