MIIX HOME / Furniture Cups Wheel Gripper Caster, Furniture Wheel Stopper, Bed Risers Non Slip, Set of 4 Black Risers for Bed, Sofa, Table and Chair, Floor Protector

It does the job

Works perfectly and a real bargain. Stopped our bed from moving even when the casters were locked. Rubber bottom of cup stays in place on our wooden bedroom floor.

These do NOT each raise the bed 1 inch. They only raise it 1/2 inch. You'd need more than the 4-pack for a bed with 4 legs, because you'd need to put 2 under each leg and that equals 8. I feel cheated with the 4-pack.

Works good on my kid's bed

Works great for under bed