Product Name: Sofa ConnectorHole Diameter: 5mm/ 0.2""It can helpkeep your furniture from moving around.The sofa sections can easily be separated when needed.Easy to install.Color: Silver Tone;Total Size: 53 x 30mm/ 2.1"" x 1.2""(L*W)Material: Stainless Steel;Net Weight: 201gPackage Content: 10pcs x Sofa ConnectorNote:Light and different displays may cause the color of the item in the picture a little different from the real thing.The measurement allowed error is +/-1-3 cm.