Raise your furniture to a more suitable height with Slipstick stack-it furniture risers. Designed to securely raise most types of furniture, these stack able risers add 1-inch incremental height to furniture and can be stacked together to add 2 inches (2 stack) or 3 inches (3 stack which requires purchase of 2 sets). Stacking stack-its together is easy, simply remove the rubber ring from the bottom of one stack it and place on top of another stack-it and they will securely nest together. For safety reasons, it is recommended that no more than 3 stack-its be stacked together under each furniture leg. Each riser features a specially designed recessed holder top which holds all types of furniture legs that are between 1 inch to 3-1/2 inch in diameter at foot as well as furniture panels / bases with a width between 1/2 inch to 1-1/2?. Also features a caster cup slot to hold in bed wheels. Built strong to support even the heaviest furniture, each individual stack-it riser can support 1,000 pounds. These clear and low profile risers are perfect for raising low sitting furniture like desks, tables, couches, and sofas; these low profile risers are also great for creating extra storage space under beds and dressers. Safe on all floor surfaces, the removable rubber o-ring on the bottom of each riser protects floor surfaces from damage and provides a non-slip grip to keep supported furniture firmly in place. Includes 8 clear stack-it bed risers that are roughly 4 inch round by 1 inch tall. Covered by a 5-year free replacement warranty and 1-year commercial warranty. If you wish to raise a bed that has caster wheels, we recommend using one of our bed risers such as Models: CB654 (2" tall), CB652 (3" tall) or CB650 (5" tall). Not recommended for use on high-pile carpet.