The TSRBS1625 Telescoping Box Support, part of the CADDY® line of fasteners from ERICO, is ideal for supporting and positioning 4” square and 4-11/16” 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® Pending, can support up to four electrical boxes andis adjustable from 12” to 25”.