【High-Quality Material】 These door stops are made of premium, non-toxic rubber, are odorless, flexible, and not easily deformed. They are highly durable, reduce noise when doors close, and are recyclable even after years of use. 【Scratch-Resistant & Non-Slip】 The door stop wedge features a unique beveled design and a non-slip bottom. Excellent friction and grip ensure the door won't slide. Soft rubber ensures your floors and doors won't be damaged by contact with the door stop. 【Easy to Use】 Rotate the door to the desired fixed angle, then simply place the wedge between the floor and the door. No need to drill holes or use tape – the door can be secured easily. 【Adjustable Height】 The rubber door wedges can be stacked as needed to adjust the height and prevent them from easily falling. One door stop has a minimum height of 3mm and a maximum of 14.5mm. Five door stops can be stacked to a maximum of 72.5mm, so you can use them almost anywhere. 【Applicable Scenarios】 The door stop is suitable for all types of floors, including carpet, parquet, or tile, and all types of doors, such as wooden doors, metal doors, glass doors, entrance doors, and warehouse doors, especially thick and heavy doors. (Black) 5 Pieces Soft Rubber Door Wedges, Adjustable Height Non-Slip Door Stop, Non-Toxic, Odorless Door Stop, Protects Floors and Walls, For Carpets, Floors, Concrete, Parquet Floors