About this item Blank keystone jack insert: covers unused ports to keep out dust and debris; fits a standard opening in a wall plate for keystone jacks. Easy to use: can be snapped easily into compatible patch panels and wall plates, and can be disconnected and relocated when upgrading or redecorating. Quality material: made of durable ABS plastic, corrosion-proof, and resistant to breakage; designed for long-lasting use. Durable inserts: the snap-in construction of these blank keystones provides a secure connection to prevent unauthorized access or tampering with your wall plates. Neat style: tidy installation delivers a professional look for home or office; the white and black color scheme complements various decors. Dimensions: 2.76'W x 2.76'H.