Slipstick CB654 2 Inch Lift Furniture Risers / Bed Risers, Adds 2" Height to Heavy Furniture or Beds (Set of 4) Supports 2,000 lbs Raises beds, couches, armchairs, desks, sofas, and other heavy stationary furniture height 2 inches to assist the sit to stand process and boost ergonomics Adds additional height/storage space under beds and furniture making cleaning underneath furniture easier (great for robot vacuums). Rubber stoppers on the base prevents movement Lifts heavy bedroom, living room, and home office furniture to a more ergonomically correct height that provides a safer biomechanical advantage to user. Fits Standard 2 inch (50mm) Bed Castor Wheels. Recessed holder cup with memory foam cushion pad built into top of risers securely locks in furniture legs and caster wheels 1.25 to 3 diameter This 4 pack of heavy-duty floor protecting furniture risers will support 2,000 pounds (500 lb weight capacity per riser cup). Not suitable for legs smaller than 32mm (1- 1/4 inch)