Features: General type: This type of screen breaker is applicable to most glass structure rear cover camera modules in the market. Alloy steel: The glass case crusher is made of alloy pen head by hand, which is customized for the glass maintenance of the back cover of the mobile phone. Adjustable force: The screen breaker adopts an optimized and upgraded mechanical structure, and can rotate the rear cover assembly according to different models of mobile phones. Rust proof: This back cover breaker adopts high quality material which will avoid rust well. Anti skid handle: Anti skid pattern handle, not loose. The handle has non slip grooves design. Note: 1. Due to different stress capacities at different positions of the back cover, it is recommended that the camera module of iphone11 and above models can be repaired directly. (it is recommended to remove the camera, battery and motherboard before use) 2. It is recommended to adjust the tail spring of the glass rear cover of other models, loosen the tail cover and adjust the appropriate force to avoid damaging the rear cover. 3. Do not use a blasting pen at the edge of the glass back cover. 4. Pay special attention not to puncture the wireless charging-coil in the middle of the rear glass shell. Specifications: Maaterial:Aluminium Alloy Size: 116*17mm includes: 1 *Mobile Phone Breaking Tool