Features: 3D-printing, made of plastic, hard plastic housing, not easy to deformation and durable. Soft sponge is pasted on the contact part with the camera, it can protect the lens from accidental damages. It can prevent the entry of non-imaging light and avoid fog when shooting in backlight, side light, or flash photography. Prevent rain dust from falling on the front lens, block stray light from entering the lens, and increase the accuracy of photography. Fine workmanship, beautiful appearances, easy to install and convenient to use. Specifications: Material: ABS Color: Black Size: Large, Small(optional) Large: Approx. 13x7.2x4cm/5.11x2.83x1.57inch Small: Approx. 7x4x1.6cm/2.75x1.57x0.62inch Applicable Model: Suitable for Action 3 Camera Note: Please allow 0-1cm error due to manual measurement, make sure you do not mind before you order. Please allow for slight color differences due to different monitor resolutions. Package includes: 1x Camera Lens Hood