6" tall risers raise up bed & furniture height 5 inches - Adds 5 inches height to beds, couches, tables, desks, dressers, sofas and other heavy stationary furniture (to add 7" height stack Slipstick cb674 2" risers on top or add 8" height by stacking with Slipstick cb672 3" risers). *Note bed riser height is 6" while the raise height it provides is 5" due to recessed holder cup on top. Locks in bed rollers, caster wheels, and furniture legs – Slipstick premium furniture risers feature a 1 Inch deep recessed holder cup with memory foam cushion pad built into top of riser securely holds in caster wheels, bed rollers, bed posts and furniture feet up to 3" round or up to 2.1" square. Not compatible larger furniture leg sizes. Heavy duty bed risers with puncture proof design - Each bed raiser features a steel reinforced plate under the holder top caster cup that prevents castor wheels, bed legs, and furniture feet from puncturing through making them ideal risers for extra heavy furniture. Steel plate and foam pads are strongly bonded to the riser body for stability. Add 2 - 3 inches additional height by stacking with slipstick cb674 or cb672 furniture risers. Creates under bed storage space - Lifts up bed and furniture height 5 inches creating extra storage room underneath beds and furniture making cleaning under furniture easier (great for robot vacuums). Perfect bed risers for dorm rooms, bedrooms, guest rooms, living rooms and more.Note each furniture riser is 6" tall x 7-1/4" round at base and has a recessed 3" round furniture leg / wheel holder top cup. High weight capacity & floor safe - This set of 4 heavy duty bed risers supports 2,640 pounds (660 pounds per riser cup) and each bed riser features 3 small rubber grips on base to protect floor and prevent supported furniture from sliding and covered by 5-year free replacement warranty. Note furniture legs must fit inside 3" wide round recessed holder top cup. Does not fit round legs larger than 3" wide or square legs larger than 2.1" wide.