This product is built with a single piece that does not slip easily, so it can be used for overwhelming games. 4-button type integrated gaming finger button for smartphones that can be used with 6 fingers. Trigger button for quick operation. Adopts silent buttons that do not worry about the sound of the button when using it. It is operated on the back of the smartphone, so it is easy to press and easy to use even for those with small hands. Specifications: Type: Finger Type: Number of Buttons: 4 Buttons, Button Type: Trigger-type, Click: Quiet, Case Compatible: Not Compatible with Devices: Thickness: 0.3 - 0.3 inches (7.5 - 8.5 mm), Compatible Screen Size: 4.0 - 7.0 inches, Power Cable Compatible: Yes. Material: Zinc Alloy, Plastic: ABS, Anti-Slip: Silicone, Panel Contact: Conductive Sponge, Color: Transparent, Outer Dimensions (Weight): W82 - 10 - 10 - 10 - 10 Accessories: Cleaning cloth, manual (English language not guaranteed). Please check the compatible size before purchasing.