8 Pcs Universal Spring Door Closer, Butterfly Spring with Rubber Bumpers

• Designed to fit onto the butt hinge pins，quick and easy fix to keep the door closed
• Sturdy contrucion, Chrome finish. Inside diameter: 18mm; Outside diamteter: 25mm.
• Easy to install: 1.close the door, pull up the hinging bolt about 25mm; 2.spread the arms of the closer open with some strength and slide it over the portion of the hinge pin; 3.slowly allow the arms of the closer to rest against the door and the frame
• Tips: 1.oil before using to stop squeaking; 2.put a small piece of cardboard or cotton layer in between the closer and door to avoid paint peeling or wear due to friction
• Package: 8 x hinge door closer. You can freely choose the number of installations

Butterfly Spring with Rubber Bumpers, fits on all door butt hinge pins Installation Instruction: 1.close the door, pull up the hinging bolt about 25mm; 2.spread the arms of the closer open with some strength and slipp it over the portion of the hinge pin; 3.slowly allow the arms of the closer to rest against the door and the frame Tips: 1.oil before using to stop squeaking; 2.put a small piece of cardboard or cotton layer in between the closer and door or clear tubing on the spring feet to avoid paint peeling or wear due to friction； 3.Wearing gloves during installation can better protect hands