Non-scratch and non-slip - These floor doorstops are made of flexible rubber. No more scratches on floors. The sloped design and anti-slip striped base ensure better friction and gripping power. Suitable for various door clearances - Rubber doorstops are suitable for floor clearances from 3 mm to 90 mm. 1 doorstop fits into a minimum gap of 3 mm. 6 doorstops can be stacked together to fit maximum gaps up to 90 mm. Please note that if your door gap is smaller than 3 mm, please choose other products. Environmentally friendly and durable - The doorstops are made of non-toxic, superior silicone rubber. With good quality, these doorstops can be recycled even after years. Product size - Contains 6 pieces of transparent doorstops. 9 cm x 4 cm. Height is 3 mm to 90 mm. The perfect size to protect your doors and furniture. Wide range of uses - The floor door stop can be used almost anywhere. It has good grip on tiles, carpets, laminate floors, wooden doors, metal doors, and glass doors.