Bolt-On Books

The Bolt-On Books by 111 Obstacles add simple, effective grip challenges to both pegboards and hanging setups. These versatile holds can be mounted directly to a Ninja Pegboard using the included hardware or hung with Nylon Straps (sold separately) to create floating grip targets within a course. Their clean profile makes them easy to integrate while still demanding precise hand placement and control.

Start with the straight Bolt-On Books for a more approachable challenge, then step up the difficulty with the angled version. The angled books taper from 5.5 inches down to 3.5 inches, forcing stronger pinching and more deliberate grips. When mounted on a pegboard, athletes can grab the bottom edge or use the top edge like a cliff, opening up multiple grip options and movement styles. Whether used for skill progressions or as a technical crux, Bolt-On Books offer flexible difficulty in a compact design. Bundle and save when you purchase the Bolt-On Books (Boxed Set).