With a double cold boot port design, this waterproof case can be used with equipment such as fill-in lights and microphones, allowing you to take more professional shots. What this waterproof case with high-hardness materials and a sealing rubber ring can offer you is that it is not only pressure resistant and drop-proof, but also highly leak-proof and supports waterproofing to a depth of 40 meters, allowing you to shoot underwater with confidence. It is constructed of tempered glass, acrylic, and ABS material. The length of this waterproof case is 9.5cm, the width is 8.3cm and the height is 4cm. It is suitable for Osmo Action 3 Camera. Item Name: Waterproof Case Material: Tempered Glass, Acrylic, ABS Suitable: for DJI Osmo Action 3 Features: 40 Metres Waterproof, Double Cold Boot Opening Design, Safety Latch Size Details: L: 9.5cm/3.74", W: 8.3cm/3.27", H: 4cm/1.57"(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Waterproof Case 1 x Aircraft Screws 1 x Base