The lever is sturdy. The hook/angle-iron is slippery and could benefit from knurling or a bend to counter the tendency to slip.
Great product for moving stuff around the house.
It's difficult for the lifter tool to lift the furniture/item you want to place the rollers under, you'll need someone to help you! It would of been better if it worked like a tire jack.....
It is good for shifting and moving furniture from place to place
I was able to rearrange my entire living room by myself using these sliders. Two very large cabinets and a tv cabinet and a sofa. I think they're a great thing to have around.