Same great features as our regular Fast Cap. Designed to be used with 2 1/2" metal studs. Available in two widths: 3 1/2" Fast Cap for 2 1/2" metal stud and 2 pieces of 1/2" drywall. 3 3/4" Fast Cap for 2 1/2" metal stud and 2 pieces of 5/8" drywall.