Feature: 1 The lens adopts wonderful optical glass, high-definition grinding treatment, 2 Multi-layer nano-coating process, the lens has waterproof, oil-proof, anti-fouling, anti-scratch performance, 3 Non-destructive brief set up can quickly update the clear out Description: Material: Aluminum alloy (frame) + optical glass, Applicable models: for DJI Osmo Action, Color: Black, Net weight: 7 (single), 23 (3-piece set), 30 (4-piece set) , Product size: 3*3*0 Packing list: As photograph shows Note:Does now not encompass Action camera and digicam frame