Free shipping on orders over $69 Tamper resistant security accessories from ASI are ideal for correctional, psychiatric, school, park, and service station type installations. Fabrication from type 304 stainless steel in extra heavy gauges ensures dur ability. Glass blasted and satin finishes provides easy maintenance. Continuous welding for tamper-resistance. Features: - Constructed of 16 gauge type 304 stainless steel - Satin finish 1" beveled trim exterior - Glass-blasted satin finish interior - Corners are welded and ground smooth - 4 studs welded on back for rear mounting Specifications: - Weight: 7.2 lbs - Required Wall Opening: 16 ½" W x 5 ½" x wall thickness" D - Overall Size: 18" W x 7" H x 4" D American Specialties Warra nt