"We've been using HFR's 36mm rings in our gymnastic classes at Escuela Experiencia for about 4 years. The thick grip makes our work with the "false grip" easier on your wrists. This helps you get stronger because you can train more often and get the benefits of grip work from the "fatter" ring compared to traditional ones. Not many people know that small 23mm rings were designed for children, 28mm for small adults and now... finally we have rings for adults with larger hands. Give them a try!"