扩手柄用,正好扩大手柄1号。操作简单，只需要于热水中浸泡数分钟，套在手柄上。冷却收缩后正好扩大手柄1个号码，而且牢固不会脱落。不影响手感。A heat shrink tube is sized to increase grip sizes by 1/8(full)