4. Avoid shoulder pain and neck pain caused by low furniture height. 1. Use clips to adjust and fix, so the wrapped furniture legs are not easy to fall. 3. The increased height not only makes available space under the bed, but also makes the vacuum cleaner or robot vacuum cleaner more flexible. 2. The 3 cm groove sinks and does not tilt when moving. 5. They also easier for the elderly to get on and off the bed.