A collapsible pet enclosure is provided. The enclosure includes a pliable cover supported by a rigid, but foldable, frame. The cover includes an opening in a top panel such that the enclosure is top loading. The cover is completely removable from the frame so that it can be machine washed. The frame is of one-piece jointed construction so that it is collapsible for easy transportation or storage. Because all frame components are jointedly attached to one another, the frame does not include any loose components that are easily lost. The enclosure is quick and easy to set up and collapse.

A chair for supporting bars is comprised of telescoping sections which lock in an extended position. The chair is intended for supporting the reinforcing bars utilized in reinforced concrete construction, but can also support other long bodies. The sections of the chair can be extended and locked individually, so the height of the chair is determined by which sections of the chair are extended and which sections are collapsed.

A hand applicator of a system for installing clips upon reinforcement bars includes a receiver tip extending from a palm plate and having a width selected to receive clips made of opposing clasp assemblies adapted to allow the user to attach the first clasp assembly of the bar clip to a reinforcement bar without direct manipulation of the bar clip onto the bar. The applicator further includes a retaining plate having a guide channel adapted to receive an extended thumb or finger from the user's hand while gripping the palm plate. The hand applicator includes a heel plate attached or integrally affixed to the palm plate and disposed so as to define a heel angle of between about 90 degrees and about 180 degrees. The heel plate is operable with the palm plate and the retaining plate to provide for ease of gripping and controlling the hand applicator with one hand of the user.