The Design House 10-pack 3-1/10 inch spring door stoppers with rubber tip are made of 100-percent steel and are designed to protect your walls and doors from damage and eliminate the slamming door sound. This doorstop has a rubber stopper tip that removes the risk of punctured walls and splintered wood caused by slamming doors. Designed and manufactured by Design House, the trusted source for quality lighting, hardware, plumbing, kitchen, and bath products for every taste and budget.