NEW UPGRADE door stopper! more easy close /open door / more smooth suitable for those thickness of the door is 3.5-5.5cm 96cm length**PLEASE MEASURE THE SIZE/GAP OF YOUR DOOR BEFORE PURCHASE . ****. Tips1: This door seam strip is suitable for smooth and flat ground without threshold2: The bottom of the door between 0.5-1cm and the thickness of the door is 3.5-5.5cm. The bottom of the door should be flat!3: Note: Not applicable to cement floor!!! Not applicable for security door !! 4. Suitable for thinner bottom of the door, it was adjustable compare to previous door stopper.Features:- Easy to install- Strong wear resistance- Can be washed repeatedly- If it's dirty, just take it off and wash it dry.