The belayer is the person who manages the rope for a climber, controlling it through a belay device to catch a fall, hold the climber's weight, and lower them safely. The belayer is the climber's life-safety partner: their attentiveness, technique, and constant brake hand are what make a fall a non-event. Belaying is a learned, certified skill carrying serious responsibility for another person.
A climbing helmet is protective headgear designed to guard against two main dangers: impacts from falling rock or debris from above, and head impacts during a fall. Certified to safety standards, helmets come in lightweight foam, durable hardshell, and hybrid constructions. Wearing one is strongly recommended for most outdoor climbing, where rockfall and inverted falls pose serious head-injury risk.
The Kilter Board is an app-connected, standardized training board with an adjustable wall angle and a fixed grid of comparatively large, comfortable LED-lit holds, offering thousands of shared, graded boulder problems. Its adjustable angle and friendlier holds make it accessible across a wide range of abilities — from beginners to elite — distinguishing it from the steeper, smaller-holded MoonBoard. It's a popular, versatile tool for training and fun.
The MoonBoard is a standardized training board — a steeply overhanging wall (set at a fixed angle) with a fixed grid of holds in identical positions worldwide — connected to an app that displays thousands of shared, graded boulder problems lit up by LEDs. Because every MoonBoard is identical, climbers anywhere can attempt the same problems and compare progress. Created by climber Ben Moon, it's a popular, intense tool for building bouldering strength and power.
A campus board is an overhanging training board fitted with a ladder of horizontal rungs, which climbers ascend and descend using only their hands (no feet) to build explosive power, contact strength, and dynamic coordination. Invented at a Nuremberg gym ('Campus Centre'), campus training develops the ability to generate force quickly and grab holds powerfully — but the high, dynamic finger loads make it one of the most injury-prone training methods, suited to experienced climbers only.
A hangboard (or fingerboard) is a board mounted on a wall, featuring various edges, pockets, and slopers, that climbers hang from to train finger and grip strength. By performing controlled dead hangs on holds of different sizes, climbers build the specific finger strength that limits hard climbing. Effective and time-efficient, hangboarding is a cornerstone of climbing training — but its high finger loads make a proper warm-up and gradual progression essential to avoid injury.
A dead hang is the act of hanging from a hold (such as a hangboard edge or pull-up bar) with straight, relaxed arms and engaged shoulders, without pulling up. As a training exercise, controlled dead hangs on edges are the primary way climbers build finger strength; the term also describes hanging from a straight-armed rest position while climbing. Simple but powerful, dead hangs must be done with proper shoulder engagement and gradual progression to be safe.
A knee-bar is a climbing technique in which the climber wedges their leg between two opposing surfaces — pressing the top of the knee/thigh against one feature while the foot pushes against another — to lock the leg in place and take weight off the arms. A good knee-bar can provide a significant rest, sometimes even a hands-free 'no-hands' rest, and is invaluable on steep terrain. Specialized kneepads help climbers find and hold knee-bars.
Spotting is the technique of guiding and protecting a falling boulderer so they land safely on the crash pads, with the spotter using their hands and body to steer the climber's fall, protect their head and spine, and keep them off hazards — rather than trying to catch them outright. The primary safety practice in bouldering alongside crash pads, spotting requires attentiveness and proper hand position, and is essential on tall or awkward problems.
A whipper is climbing slang for a large, dramatic lead fall — the kind where a climber falls a significant distance below their last piece of protection before the rope catches them, often with a noticeable swing. While they look and feel intense, whippers are a normal, expected part of pushing your limit in lead climbing, and on well-protected routes with an attentive belay and a dynamic rope, they're usually caught safely.
