A floor spring is a type of door closer that is installed in the floor and allows the door to swing in both directions. It consists of a spring-loaded hydraulic cylinder that controls the closing speed and force of the door. Floor springs are often used for glass doors or heavy doors that require a smooth and elegant requirement. FINISH : SS finish, Rose Gold, Gold, Black Matt MATERIAL : SS top cover, MS bottom cover, cast iron body. SPECIFICATION : 1) Maximum Opening Angle 105 Degree, 2) Door Hold Angle 90 Degree Long Life, 3) Leakage Proof, 4) Two Direction Opening, 5) Adjustable Closing Speed, 6) Latching Force 7) double action floor spring 8) maximum door width 1300mm 9) suitable for wooden & glass door.