Made of rugged, good looking, and comfortable ABS plastic. High walls offer excellent lateral stability. Easy to keep clean. 5 different sizes, from adult to toddler.
Two sealed bearing in each joint provide excellent fluid movement even under heavy load conditions. It feels like your arms are floating!
In order to achieve more functional hand control, a brass-tipped set-screw can be tightened at each joint to provide shock-absorbing resistance that helps manage tremors or spasticity. For those who just need relief from back, neck and shoulder tension caused by repetitive stress, the resistance adjustments in the joints can simply be left unengaged.
More information: http://www.zoncoarm.com/zonco-arm-support.htm