HIGH QUALITY TEMPERED GLASS CONSTRUCTION: Our chair cushions are made of explosion-proof and shatter-proof tempered glass with excellent durability, anti-scratch, anti-pressure and anti-deformation properties, which makes the office chair cushions five times more impact-resistant than ordinary glass and avoids the chair wheels from leaving traces and permanent indentations. Lasts decades longer than traditional plastic/PVC chair mats, significantly reducing replacement costs SILENT OPERATION & ERGONOMIC DESIGN: Ultra-smooth surface coating reduces lumbar strain during extended use. Eliminates chair caster noise - ideal for late-night work sessions, conference rooms, and immersive gaming environments where quiet matters 5MM TEMPERED GLASS: Hasipu uses 5mm thick tempered glass chair cushions and with its exclusive beveled edge design, our premium glass chair cushions transition smoothly to carpet or hard floors like no other manufacturer 1000LBS WEIGHT CAPACITY: The stylish