Body Security: Heavy 11 gauge steel. Welded body. 4 Pre-drilled holes on the bottom of the safe for anchoring to the floor (mounting hardware for concrete included) Fire Rating: 60 minutes at 1250 degrees f. Heat-activated door seal (expands 5 times its thickness). Two layers of fireboard insulation in the body walls, floor, and ceiling. Three layers of fireboard insulation in the door. External door hinges allow for full fireboard protection, unlike internal hinges. Interior: Long-gun slots + 2 long guns on the door organizer. Full internal door hanger/organizer, partially customizable. Gray carpeted interior. Adjustable shelving heights/placements. One large upper shelf is included. Three small shelves are included. Exterior: Black powder coat finish. Chrome-plated five-spoke handle. Chrome-plated hinge caps. (UL listed) High-Security Electronic Lock in bright chrome Door security: Composite steel door with 11 gauge steel. Steel locking bolts: full door coverage. Re-locker pin equipped to protect against lock tampering. Drill-resistant hard plate to protect the lock against drill attacks. Attack-resistant external hinges allow the door to open 200 degrees, unlike safes with internal hinges.