Flywheel Training Box Instructions (English Edition)

The DIY Path to Effective Concentric, Eccentric and Isometric Muscle Contraction. This instruction manual details the building of your own durable Flywheel exercise box for about $200 worth of materials. The resistance of the weight adjustable flywheel provides a unique form of exercise and this flywheel training box will likely become your favorite piece of equipment. Only basic tools and basic skills are required.