Feature: plastic cage is designed for action camera protecting, compatible with GoPro 8, not blocks buttons. Premium plastic material, lightweight and durable; with patented storehouse design used for the placement of microphone adapter. Removable Filter Design: provided with a 52mm clip-on filter ring, mounting external filters is available when needed. Lens Protection Cover Design: adopts clip-on protective cover design, fast installation and much secure. With the design of battery side door, allowing you to easily change battery without taking off the cage, and it reserved charging and microphone interfaces for convenient use. (Note: please remove the battery door before use). On the top of cage has an elevated base for mounting microphone, so as to avoid microphone into the picture during shooting. Specification: Product: Plastic Cage Compatible with: GoPro 8 Item Size: 108 * 73 * 38mm / 4.3 * 2.9 * 1.5in Item Weight: 48g / 1.7oz Package Size: 11 * 9.1 * 4.7cm / 4.3 * 3.6 * 1.9in Package Weight: 83g / 2.9oz Packing List: 1 * Plastic Case 1 * Cage Back Door 1 * Top Up Base 1 * Lens Protector 1 * Lens Filter Adapter