Made using Sorbethene® material. Well known for its vibration/recoil dampening properties. 3M backing allows quick and easy peel and stick installation. Precise fit on Phoenix Technology Adjustable Cheek Riser (Part # ACR001) Pad has rounded corners on one side. Can be trimmed for custom fit for use on other stocks grips or forends. Dimensions: 5.25" x 3"