STACKABLE DESIGN: Bed and furniture risers are designed to be assembled.MATERIA UPGRADE:Furniture risers made by durable PP,Every risers can handle heavy duty furniture up to 1000 lbs.easily hold your heavy duty furniture and wouldnt wobble.WIDELY APPLICABLE:bed risers heavy duty apply to raise beds,couches,chairs,cabinets,tables and fridge,gave you more storage space."L" side makes Furniture Risers easier to match to the furniture legs.ANTI-SLIP AND SHOCK ABSORPTION:Anti-slip design of the top triangular cone avoid furniture sliding around,TPU Rubber Lower Layer design protecting the floor from scratchesand reduce vibration.ROOM for IMPROVEMENT: Adjustable bed risers system instantly creates additional under bed storage space, easy to clean.SIZE:S-L*W*H:7.8*7.8*4cm/3*3*1.6inM-L*W*H:7.8*7.8*7.5cm/3*3*2.9inL-L*W*H:7.8*7.8*11cm/3*3*4.3inXL-L*W*H:11.5*6*4cm/4.5*2.3*1.6inXXL-L*W*H:11.5*6*7.5cm/4.5*2.3*2.9in3XL-*W*H:11.5*6*11cm/4.5*2.3*4.3in