Slipstick Medical Bed Risers hold up to 500 lbs. each, and come equipped with a special scratch resistant and non-slip base. While the Medical Bed Risers work great on covered floors; our scratch resistant base makes these risers perfect for hardwood, laminate, tile, slate, marble, and ALL other hard floors. The medical risers hold casters or posts up to 3-Inch in diameter. Each riser comes with our recessed foam insert providing a safe and secure fit. In addition, we include two BONUS floor protectors for the posts or casters opposite of the risers. Our premium Medical Risers were specifically designed to help relieve medical concerns. Improvements for condition include: Acid Reflux, Fluid Retention, Chronic Congestion, Sleep Apnea, Varicose Veins, and more. These premium risers offer an affordable remedy to long sleepless nights. Slipstick maintains the highest quality standards backing our products with a 5 year warranty.