Compatible models: Action cameras such as GoPro HERO12/11/11 Mini/HERO10/9/8/Max/Osmo Action3/2/1, etc. Set contents: 30cm extension arm, 16.5cm extension arm, 8.5cm extension arm, curved base, curved double-sided tape, screws, wrench #cha-chan's item I have other items for sale too! Please take a look! [Immediate purchase available❣️] 21-41 13-33 * Shipping will only be on weekdays. * Simple packaging, using recycled materials for packing and shipping. Items are stored at home! Please understand and purchase! Please see the actual photos for the condition of the product! To make it a little cheaper, some items may be taken out of their boxes. Please understand. [Product Description] [Universality] Can be used in combination with action cameras and accessories that adopt the GoPro standard. It has a certain degree of universality with other action cameras. Helmet mount, 3 types of length extension arms, compatible with GoPro cameras in general / OSMO Action, curved base, adhesive double-sided tape, knob screws, wrench included