Buy with Confidence: With Monoprice's Lifetime Warranty on all Cables, you can rest assured we stand behind our products and our customers. The wall plates feature a unique design with tabs on the sides that fasten tightly against the back of a drywall mounting surface providing a clean looking installation without the hassle of installing a gang box or work ring The design also allows for additional versatility as the wall plates can either be installed vertically or horizontally on the wall Total dimensions: 4.9' (L) x 3.25' (W) x 2.25' (D) Cable pass through dimensions: 2.5' (L) x 1.5' (W) x 2.25' (D)