The Bowers & Wilkins FP25353 Pre-Construction Bracket is designed for use with Bowers & Wilkins Custom Install speakers during new construction. This is a rough-in kit consisting of a circular speaker bracket and two wing pieces to be attached to ceiling or wall studs. This will help identify the position of the speaker during construction and provide a guide for cutting the hole for the speaker to be installed. It is compatible with Bowers & Wilkins CCM662, CCM663, CCM664, CCM665, CCM663SR, CCM664SR, and CCM362 model speakers.