Spring Loaded Hinges - TOOGOO(R) Silver Tone Metal 50 x 50 x 2mm Spring Loaded Self Opening Hinges Product Name : Spring Loaded Hinges Material : Metal Flat Open Size : 50 x 50 x 2mm/ 2" x 2" x 0.078"(L*W*T) Closed Size : 50 x 30 x 30mm/ 2" x 1.18" x 1.18"(L*W*H) Install Bore Size : 5mm/ 0.2"