Jバンド・ストロング：チームまとめ買い・１０本セット

J-Bands的强效肩部训练带套装，包含10根不同颜色的强效模型，适合团队进行高强度肩部强化训练。

• The description claims that the strong model specifically targets rotator cuff muscles and enhances shoulder stability for pitchers and catchers.
• The description claims that the training is part of a phased approach used by NPB teams.