Double Acting Floor Spring Hinge Includes 2 spring hinges and 1 traditional. Spring hinge size: 114mm x 102mm x 3.4mm. Traditional hinge size: 102mm x 102mm x 2.2mm. Material: steel. SKU Description 0010971 Double Acting Floor Spring Hinge Related Products: Steer Wheel Lock 100 Hinges Door Viewer 200º