Features: Dust and Scratch Resistance:Multi-layer coating provides protections against dust, shocks for for lens. At just 10g, this UVs lens filter adds minimal bulk to action camera. UVs Filter Protections:The UVs filter minimizes blue casts, enhancing contrast in high altitudes or beach. Easy Installation,with real machine mold opening, filter ensures for Gopro13 12 11 10 9. 9H Hardness Tempered Glass:with 9H hardness tempered glass, this lens offer superior scratch resistance and high definitions. Specifications: Materials: Tempered Glass Size:6cm/2.36inch Package Includes: 1PC Lens Cover note: Please allow 1-3cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the picture may not reflect the actual of the item.