"NEW HYDRAULIC SPRING --- Magnetic Door stopper adopts inbuilt hydraulic shock absorption technology in the long part of door stop, combines with the spring buffer in the cup portion, has the double shock absorption function. Compared to others magnet door stop, our magnetic door stop protects your doors and walls in every close and open motion more effective, and can maximum reduce the noise.POWERFUL MAGNETIC DOOR HOLDER --- The magnetic door catch undergoes thousands of physical tests, and the properly magnetism with soft-catch function, will stop and hold any doors softly and silently, no longer worry about the door slamming into the wall. Door stop magnetic is also strong enough to keep door open even in strong winds.304 STAINLESS STEEL --- Our heavy duty door stop is made of quality stainless steel, has the features of rustproof, indestructible. Magnetic door stoppers for bottom of door is suitable for indoor and outdoor use to hold light or heavy doors.WIDE APPLICATION --- Modern and stylish appearance, the magnetic door stopper fits many dcor styles, can be placed on wherever you want the door to remain open, such as garage, residence, dorm, office, hotel, recreational vehicle, cabinet, patio, camper, etc., hydraulic door stopper, hold door open softly and silently."