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.
The bookcase itself is solid wood & easily weighs over 100lbs. These castors are the nicest set i have yet to find on the market!
Each caster is equipped with a foot pedal lock (brake) the swivel on each wheel feels smooth and turns very easily. The locking mechanism works on all wheels, which is important.
There are generally three styles of casters, plate mount, stud mount, and the retractable style (listed below). The ticonn are the plate mount style. The casters come with a full set of mounting hardware making this a complete kit. Comes with adequate... Read More
They're very well made, roll effortlessly, the locks hold and are easy to engage and disengage. They are extraordinarily sturdy and roll with ease not harming a wood floor at all.
If the cart sits in one place more than a few days, the wheels tend to develope a flat spot on them.
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Mostly unreliable reviews. Do more research before proceeding