Two in the pack fell apart but that allowed me to see how they were made. There are several small stainless steel ball bearings between the large ball and the plastic housing. But out of 20, two were broken and dismantled. Six did not rotate and jammed. The rest worked fine. I wouldn't use them on bare wood surfaces - they will scratch them.
Campbell PB0722827 Polycoated Diameter Capacity
3 Review
Цепь Campbell 040581210 Grade Bright
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Campинговый мат из нержавеющей стали Metown - оптимальная толщина для идеального опыта на открытом воздухе.
3 Review