Side Mount Casters L-shaped metal design, side mounting, more stable | Leveling Casters Levelable casters for uneven floors | Low Gravity Casters Low center of gravity design is more stable |
Thermoplastic Rubber Thermoplastic rubber is smoother, noiseless and protects the floor | Sturdy Nylon Base Rugged nylon base design, load capacity 2200 lbs | 0.16" Thick Stamped Steel Upgraded thickened stamped steel load 4400 lbs |