Most Secure Mounting;Clip-In M18 Battery Storage;Fully Customize Your Shop;Stores- 4 M18 Batteries;Securely Locks onto Wall Plates, Slides onto Tool Box Lids;15lbs Weight Capacity;L 4" x W 4" x H 13";Limited Lifetime Warranty;Includes (1) Packout M18 Battery Rack;Modular Connectivity with All Packout Components