Using screen-friendly silicone foam to attach to your phone. You can adjust the left and right settings for your preference. The keys hold the phone tightly and securely. The keys can hold the phone with or without a protection case. Works with mobile shooters that allow users to customize their interfaces.
Supported Devices: Most touch screen devices Material: Copper+Plastic+Silicone Size: As the picture, perfect fit Supported Games but not limited to: Rules of Survival Royale Knives Out PUBG Mobile Critical Ops