YY Vertical Climbers Mug

These unique training mugs are designed to supercharge your physical training! They'll strengthen your fingers to match the strength of your biceps. With three different cups, you can easily tailor your workout to your physical training schedule, smoothly alternating between intense effort and well - deserved rest phases.

Using these training mugs is easy. Simply hold the mug in your hand and use it as part of your normal physical training routine. You can choose different cups according to your physical condition and training goals. When using, make sure your hand grip is firm to avoid the mug slipping. After each use, clean the mug with a mild detergent and dry it thoroughly. Store it in a dry place to keep it in good condition.