Stabilize furniture and stop wobbling: 20 durable plastic composite shims designed to level bookcases, sofas, tables and other household furniture so pieces sit evenly on uneven floors. Strong grip under load: Inclined trapezoid shape plus an antislip textured surface provides a firm hold even with heavy items, reducing movement and improving safety. Simple, precise height adjustment: Stackable design lets you layer shims to achieve the exact thickness needed for balanced support without visible gaps. Customfit and discreet: Shims can be broken to the required size so only the needed portion is exposed, preserving a clean, concealed appearance. Durable material and reliable performance: Made from longlasting plastic composite that resists compression and maintains level support over time. Compatibility: Works with most furniture leg shapes and bases — ideal for wooden, metal or plastic feet and uneven floor types (tile, hardwood, laminate). How to use 1. Slide shims under the low leg or corner until furniture is level. 2. Add or remove shims to finetune height; break off sections for a fit. 3. Push shims fully under the furniture so the textured surface contacts the floor for maximum grip. Practical applications Bookcases: Prevent tilt and reduce stress on shelves by leveling the base on uneven flooring. Sofas and chairs: Eliminate rocking caused by floors or worn legs for a more comfortable and stable seat. Tables and cabinets: Create a level work or dining surface and prevent items from sliding. Package contents 20 longlasting plastic composite shims, stackable and breakable for adjustable thickness and concealed installation.