Enhances furniture mobility and floor defense with these 360 degree rotating zinc alloy casters featuring ball bearings, offering adjustable heights and durability for sofas, cabinets, and tables general compatibility with most furniture legs and tool easy installation make these versatile risers essential for maintaining adaptable, well protected living spaces year round glides bookshelves across hardwood floors during room redesigns, adjust dining tables for gatherings, or reposition entertainment units in living rooms with quiet , scratch easy operate Built with reinforced bases and accuracy engineered rolling mechanisms, these heavy duty furniture pads secure smooth multidirectional movement while damage and floor indentations Ideal for households with active children, renters frequently rearranging spaces, and environments requiring flexible furniture positioning without compromising floor integrity