Norgail 4 Pack 1 Inch Small L-Sh... vs 3" Heavy Duty Swivel Rubber Cast...

Rubber protects vinyl or laminate flooring from scratches. The wheel tire is softer, non-marring silicone appropriate for rolling on a hardwood floor. Shelf top roller on track design maintains maximum vertical and horizontal shelf stability.

Big wheels are nice, these roll and pivot well. They move very smoothly. Dual locking feature added bonus.