1.Size: iron: 55mm x 44mm / 2.2 inch x 1.7 inch (L * W); Maximum extension length: 135mm/5.3 inch; Distance between 2 holes: 40mm /1.6 inch; The thickness of the iron sheet: 3mm 2. Material:rust-resistant, sturdy and durable 3. Sofa connectors are made up of two parts, which are connected by the Triple-cornered shape nail, the teeth part can be extended and tightened, can be stretched enough length to let you free to adjust and place sofa 4.This sofa connector can be used to connect and adjust furnitures in different positions and angles. It can also be hidden under couch by changing the angle if not in use. 5.Suitable for fixing different style combination sofa, please make sure that the connection surface of your sofa bottom is not less than 2 inches wide colour:Silver + black Material:iron Package Contents: 4 * Sectional Connectors