Protex WDS-311 Through-The-Wall Letter/Payment Drop Box<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Designed to be installed in the wall between standard (16" on center) wall studs </span></li><li><span class="a-list-item"> Includes two removable and adjustable metal frames to hide the rough cuts </span></li><li><span class="a-list-item"> Recommended wall thickness for proper installation is between 4 and 10 inches </span></li><li><span class="a-list-item"> Drop slot opening (12-3/8") long enough to drop legal size paper or large envelopes </span></li><li><span class="a-list-item"> Indoor use only. </span></li><li><span class="a-list-item"> The perfect way to lock and secure suggestions， ballots， keys， mail， money， rent checks and more^Drop Opening: 12-3/8" (W) x 1/2" (H)， long enough to drop legal size paper or large envelopes^Metal baffle to protect drop opening from fishing^Safe comes with two keys. Tubular-style key lock with double "D" configuration.^Indoor use only! </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41nqneuoX6L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/310AKfFv2yL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31q6VHjTtUL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41RSjTXTH8L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41uIsFzjfeL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/4176om4B-vL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41l5BFvLbDL.jpg" noproxy>