Fastcaps are 9/16" diameter self adhesive cover caps that peel and stick. Use Fastcaps to conceal your countersunk screws or exposed holes. Simply peel and stick Fastcaps to cover countersunk screws or holes on cabinets, furniture, woodworking projects, point of purchase displays, and DIY projects. The Fastcaps adhesive will cure and get stronger over time. Once cured, parts are waterproof. Fastcaps are available in a wide selection of colors including wood grains, see below. Material is high impact PVC plastic.