Neewer 52MM High Definition Telephoto Lens Kit for Gopro Hero 3+/4 (4 Items) Kit includes: (1)52mm 2X Telephoto High Definition Lens(including Lens Bag) + (1)52mm Lens Filter Ring Adapter The 52mm 2X telephoto lens can provide maximum light and image transmission with maximize day and night shots. The 52mm adapter is specifically designed for your camera for a tight and secure fit. No wobbling or cross-threading.