The screw clip is fixed and will not fall off: you don't have to worry about the bed riser falling off. The 3-centimeter groove sinks and does not tilt when moving. Using screw clips for adjustment and fixation, the legs of the wrapped furniture are not easy to fall off. Adding extra height: Not only does it increase the storage space under the bed, but it also increases the height, making vacuum cleaners or robot cleaners more flexible to work. They also make it more convenient for elderly people to get in and out of bed. Increase the height of heavy fixed furniture such as beds, sofas, armchairs, tables, sofas by 2/4 inches to avoid shoulder and neck pain caused by low furniture height Protect your hard floor from scratches: The bottom of the sturdy sofa leg riser is made of high-density felt furniture mat, and the bottom felt mat protects your floor from the beginning. Heavy and smooth edges can safely handle weight without causing any credit card hard surfaces or protecting your hardwood, tile, and linoleum flooring from damage and wear. Package includes: 4 * adjustable table footrest Attention: 1. Due to manual measurement, please allow for minor errors. Please ensure that you do not mind before bidding. 2. Colors may vary depending on the monitor, please understand. Hello, please pay attention to your shipping address when purchasing products. If your delivery information (such as name, street, house number, doorbell/email without a name, etc.) is incorrect, the order will not be delivered correctly