Coloch bed furniture riser measures 6.1x 5.9 inches in external size. The bed frame is 3.3x 3.3x 0.7 inches, suitable for furniture legs with diameter not more than 3.3 inches.The size fits most furniture in the market. Solid Material: The bed furniture riser is made of premium non-slip plastic, sturdy and durable. It is solid enough to hold heavy furniture up to 3,000 lbs (when you use the six riser together, 500lbs each one). Raise Your Furniture:The square bed leg elevator can add a 5” height to your furniture, which provides a good way to relieve backache and pain. It also provides more storage space and is convenient for cleaning. Considerate Design: The furniture frame lifts can be stacked together to save space when not in use. The matching insert can help you fix the furniture leg which is much smaller than 3.3inches, a great tool for holding furniture. Multi-Use Furniture Raiser: The furniture riser is perfect for bed, couch, desk, chair, sofa, table and other furniture legs. You can use it in your living room, bedroom or office to protect your furniture from scratching while raising them. Coloch bed furniture riser measures 6.1x 5.9 inches in external size. The bed frame is 3.3x 3.3x 0.7 inches, suitable for furniture legs with diameter not more than 3.3 inches. It is solid enough to hold heavy furniture up to 3,000 lbs (when you use the six riser together, 500lbs each one). The square bed leg elevator can add a 5” height to your furniture. The furniture riser is perfect for bed, couch, desk, chair, sofa, table and other furniture legs.