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Antworks - Rotant Sphere - Training device
The Rotant Sphere from Antworks is a great training and warm-up tool. It can be used any where and doesn't take up much space. This little thing will get your forearms pumped and upper body trimmed. Especially the shoulders are getting to work here. Casper has tested these and is pretty sure that even the vibration from the spinning disc has helped his elbow problems.