Abstract: A modular storage rack for holding one or more containers, or objects, of a parallelelepiped configuration. A plurality of racks may be connected together in a contiguous fashion by means of a coupling mechanism. The size of the storage rack is such that a plurality of racks, when attached to one another, by means of the afore mentioned coupling device, will have approximately the same external dimensions of one or more of the containers or objects held within the rack.Each storage rack is comprised of two entitles joined by a hinge mechanism. Each entity consists of a right parallelepiped shape containing a slot or groove. When the two entities are folded, by means of the afore mentioned hinge, and held perpendicular to one another, by means of a locking mechanism, the storage rack will hold one or more of the containers or objects in a fashion that allows easy removal from the storage rack.

Abstract: A device for controlling the rate of descent of a mountain climber having an oval ring which defines an inner aperture, a rail mounted on the first surface of a size of the ring, clasping means which spans the width of the ring and means by which the device is attached to the mountain climber.