Abstract: A modular climbing volume has an enclosed space, and can be attached to a climbing wall or frame. The volume has at least two panels, one of which is a mounting panel for removeably securing the climbing volume to the climbing wall or frame. The at least two panels each comprise one or more connecting edges, each panel removeably secured to at least one other of the at least two panels to form a pair of adjoining panels, wherein the panels of each pair of adjoining panels define an interior angle ? therebetween, and wherein the connecting edges of each pair of adjoining panels are bevelled at a bevel angle ? that is substantially one half of the interior angle ?.

Abstract: This invention relates to a rigid single piece buckle used to securely connect the loose end of a strap to the looped end of another strap.