Protex Wall Drop Box with Adjustable Chute & Keyed Lock MDL-170 12" x 6" x 16" Beige

Overview tubular-style key lock with double "d" configuration (can be retrofitted with other cam locks) chute is adjustable for walls between 3-1/4" - 7-3/4" thick piano hinge drop slot opening 10" wide and 1/2" thick, for large envelopes and legal size papers metal baffle to protect slot pre-drilled mounting holes in back mounting hardware for wood and concrete is included two tubular keys included recommended wall thickness for proper installation is between 4" to 7". specifications exterior dimensions 12" (w) x 16" (h) x 6" (d) door clearance 9" (w) x 13" (h) drop opening 10" (w) x 1/2" (h) door thickness 1/8" face plate 12"-1/8 x 4"-1/8 weight 25 lbs.