Feature: Made of quality PC and glass material, high transmittance, durable and to use. Fully suitable for Hero 9 Black action camera. Durable and usable, anti-surf pressure will not damage photographic effect. Protecting the tightness of the shell, not only better waterproof, also more effective to prevent small dust into the camera. 50 full body underwater waterproof , perfect for diving, snorkeling, swimming and other water sport activities. colour:black + transparent material:PC + tempered glass size:8.3 x 4.1 x 8.8cm Package Contents: 1 x Waterproof shell Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.