PATENT PENDING BEVELED EDGES Engineered beveled edges (Patent Pending #30004842) enable smooth chair roll-on/roll-off (no snags/tripping). Keeps workflow uninterrupted. HEAVY-DUTY TEMPERED GLASS 1/5" thick glass supports up to 1200 lbs (no cracks). Protects hardwood/carpet/tile from scratches, dents, and caster damage (even heavy daily use). CRYSTAL CLEAR & ANTI-SLIP STABILITY Ultra-transparent glass preserves your floors beauty (matches any decor). 12 anti-slip pads ensure zero sliding, maximum stability. SPACIOUS SCROLLING AREA Large 46x36 surface for effortless chair movement. Reduces leg fatigue, improves posture during long work hours. SATISFACTION & SAFETY GUARANTEE We guarantee satisfaction. Stop use if broken (external force) and contact us for support.