Ecally Furniture Risers Adjustable Bed Risers Desk Leg Risers 1.38" Stackable Heavy Duty Bed Lifts Risers Square Bed Raising Blocks for Mattress Table Leg Desk Chair Couch Sofa Dorm (Black,32 Pack)

They are the perfect size, sturdy, inconspicuous & hold up well after being stacked.

Easy to use with 2, but not stable with 3. I was hoping with 2 that my robot vacuum would work, but it still was not tall enough to go under my furniture, even though I thought I measured it before buying.

Super easy-to-use adjust height. They snap together great! The gray matches our floor, so they look great. My desk and vanity table legs fit well, & don't slip or wobble.

They serve the intended purpose of elevating some furniture pieces. Easy to use.

These good risers, the only reason I took them to a 4 is that they get a little wobbly if you stack more than a about 3 high.They also have a little grip to them, however on hard surface floors they will slide a little.