These are possibly the largest caster wheels i've ever seen. They are durable, easy to install, and work great! The only downside is that there is no locking mechanism, but i should have taken that into consideration on purchase.
Two front casters lock to prevent rolling though they still swivel so there can be some movement. Rolls around as smooth as silk, almost effortlessly. Rolls very smoothly and quietly across our wood floors.
They hold my small granite countertop cabinet very well. The l shape mounting bracket allow you to mount to the end of 2 x 4's. This 5 screw system makes a good solid connection to a table leg.
They're a good value at about $10 (with 5% off coupon, at the time of this review) they are small but sturdy. They are durable and rubber!
Mechanisms are flimsy and the screws are fragile. Wheels are able to handle the load, however, if you start to roll them under weight the brackets started to curl under the load.
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