This pack includes 10 toppers and 3 clamps that will fit the most common controllers. Screw in feature gives a snug but easy to swap ability in colors and design. Give your fingers some adventure with the various toppers from a mini joystick to spikes in the thumb. Live a little. Ensure printed area of the screw attachment is clear of any dirty printing. Important to attach desired clamp to topper then apply to controller. Topper acts as a top seal for clamp. Recommend .8 layer with %100 infil. Recommended pricing for printed models, $5 a pack.