The TSRBS1625 telescoping box support, part of the nVent CADDY line of fasteners from nVent ERICO is ideal for supporting and positioning 4 in square and 4 11/16 in electrical boxes and mud rings. A unique, open design allows boxes to be positioned anywhere inside the opening of the TSRBS1625. For added convenience, boxes can be installed off-site and then are fully adjustable to fit varying stud spaces on-site without needing to modify the box location. The TSRBS1625 is cULus listed, can support up to four electrical boxes and is adjustable from 16 in to 25 in.