An excellent tool to practice your grip: The Judo Uchikomi Exapander. Made 100% out of cotton, the rice grain structure gives the perfect feel of a judo gi. Designed to strengthen upper muscles as well as to help train the uchikomi technique without a partner.
4 Item Items
Warning: Last items in stock!
Regular: 3/4" (9mm) diameter and approx. 13' (4m) length
United States Design Patent D738,978