Slipstick® 1" stackable furniture risers are ideal for lifting furniture to a higher more comfortable or suitable level. They can be stacked together to make 1", 2" or 3" height adjustemnts. Ideal for desks, low sitting chairs or sofas, tables, beds etc. The bottoms feature a soft rubber O-ring to protect the floor from scratches and keeps your furniture in place. The top features a recessed opening designed to hold multiple sized legs, wheels and furniture feet. Safe and secure each riser can support up to 1,000 lbs. each. Ultra clear they disapear form sight and won't detract from the rooms decor. Box includes 8 Stack-its to mix and match to your needs.