Armworks products were developed to build muscle, tendons and ligaments. The tendons and ligaments strengthen three times slower than muscle, so Armworks developed products that allow you to have continuous weight gains, without failure, but at a slower rate then you would traditionally see in weight lifting. The NanoWeights specifically address the increases without failure in weight lifting, building the tendons and ligaments at the slower rate. Armworks also has developed the Building Blocks to strengthen the fingers, hands, wrists and forearms. Also for Isolated wrist curls Armworks designed the Forearm Machine.