Color Marking - There is a color marking on the suction cup of the bathroom handle. Green means the handle is well absorbed; if it is red, it means the handle is not pressed firmly. Air trapped under the suction cup will cause the shower handle to slip. Pay attention to the markings when installing the handle. DURABLE AND DURABLE NON-SLIP - The handle is made of ABS plastic, which is durable and wear-resistant. The sturdy suction cup design works on all non-porous surfaces, including smooth tiles, glass and porcelain. EASY TO USE - Place the tub holder on a clean, smooth, non-porous wall and open or close the suction cup locks on both sides. You can easily install or remove the handle. No Drilling Required; Suction Cup Design - This suction cup handle is detachable and can be reinstalled without tools or drilling. You can always adjust the position of your bathroom handles to meet your specific needs. Versatility: The surface of the shower handle is made of concave and convex textured rubber, which is comfortable and non-slip. This product provides safety protection for bathrooms, bathtubs and toilets, and is very suitable for the elderly and children. Note: The data is all measured manually. Please allow 1-3 cm error due to light and display differences. There may be color differences. Please refer to the actual items received.