This 8-piece set of plastic bed risers by Homeitusa allows you to raise your bed, dresser, table or chair by 3, 5 or 8 inches. Bed lifts can provide simple DIY under-bed storage and work wonderfully as dorm bed risers. Bed Riser set includes four large and four small riser cups that may be used alone or stacked. Bed leg or caster fits safely and securely into the recess cup built into the bed riser. The risers are likewise ideal for elevating work tables to reduce back aches and pains. It also reduces the effort to stand from low sofas/couches when you apply these furniture risers to them.