A daisy chain is a piece of climbing equipment intended for use in aid climbing. It is a webbing sling that has additional stitching along its length that creates multiple pockets. By clipping one caribiner into the end of the daisy chain, and another into one of the pockets, the effective length of the daisy chain can be selected.
The additional stitching in the daisy chain that creates the pockets is not usually very strong. It is designed to hold body weight only, not forces that could be generated by a climbing fall. This means that some care must be taken in how the daisy is used to avoid problems caused by the possibility of broken stitching. In particular, it is very important that only one pocket is clipped, otherwise, even with small forces, the caribiner could become detached from the daisy.
The following images illustrate the above limitations. Click on the pictures to get a closer view.