- Free shipping
- 100 days returns
- Low prices
- 5 million products
200x30x30x30mm Triangular Prism Optical Prisms Glass Physics Teaching Refracted Light Spectrum Children Students
Specifications:
- Surface: --
- Shape: triangle
- Origin: CN(Origin)
- Material: K9 glass
- Brand Name: xinxiang
- Free shipping
- 100 days returns
- Low prices
- 5 million products