Lapis Rollyballs (Small) are hanging climbing training equipment designed to help advanced climbers to improve their grip and pinch strength.
For climbers that are already operating in the mid to higher grades, the Rollyballs allow you to work on your core, arms and shoulders at the same time. Similar to the Metolius Rock Rings - in that you hang them from a beam or bar by a cord or sling, and pull up on them - the Rollyballs are effectively spherical climbing holds (the small ones are roughly the size of a cricket ball) with a looped pin at the top. The grippy resin balls are then hung from and used as an upper body training system. Unlike Rock Rings or Fingerboards - which are generally held as crimps, jugs or slopers - the Rollyballs are held as a pinch. The difficulty of the grip can be altered by where you place your hand on the suspended ball.