The flat tube bottom design is 1.5cm thick and can be reinforced with screws for added security. There is a nylon storage bag for easy access to items such as an ipad, medication, cellphone, purse or a toilet roll. The 1 key quick installation means that the installing and disassemble is quick. All you simply do is adjust the height, insert the snap and the installation is complete. The handle for the bed rest is covered with a black PU foam. This foam is non-slip, comfortable and dirt-resistent. The bed rail is suitable for single to king size beds. Mattress must be 7cm or more in height. This device does not damage the mattress or bed. Note: 1. This product is only a bedside assist bar rail, no other decorations. 2. Due to different lighting and screen settings, the color of the item may differ slightly from the picture. 3. Due to manual measurement, please allow slight difference in dimension. What's in the box? 1 x Adult bedside assist bar