This ProX X-PEW8675-HD Penn-Elcom 3" Heavy-Duty Zinc Corner Caster with Blue Wheel is designed to work with cases that use a corner caster. The caster is offset, allowing it to work with extrusions up to 1.375" The caster weighs a mere 1.1 lb yet supports up to 330.7 lb.
UPC: 798239008835