The XCO-TRAINER is an anodized, weather-resistant aluminum tube containing a highly specialized granular substance, which serves as an oscillating mass. The determining factor is not the weight of the training tool, but rather the amount of force applied by the individual user (or trainee).
Originally developed as a physical therapy aid, the patented secret lies within the XCO-TRAINER. Unlike stationary dumbbells, specially patented granules inside the XCO-TRAINER serve as a dynamic mass which increases in direct proportion to the momentum of your own swing.
When activated by rhythmic swinging motions, the oscillating mass of the XCO-TRAINER dynamically harnesses the power of the user’s own momentum and unleashes a powerful counterbalance to the exercise it is being applied to, thereby greatly increasing the effectiveness of the activity.
Maintain grip on your XCO trainer size large with this special foam grip. Watch out! The foam is intended to bring on the XCO-Trainer only once.The XCO-Trainer is a safe way to train your muscles, keeping fit and burning calories. This training shall be strength and dynamism combined with intensive training for the abs, back, leg and arm muscles.