If portablity is what you are looking for, the HD-100 is the perfect blend of reliable security and quick access all in a compact size. The HD-100 Quick Vault provides secure access with the ease of a simple electronic combo with Piston-assisted Door, Lighted Interior and a Key Backup. The HD-100 provides robust security and reliable accessibility when you need it most! The HD-100 will fit most standard handguns and is perfect for small valuables. The included Security Cable allows for additional protection when at home or in an automobile. With the HD-100 you will have quick access from discrete locations, such as in a desk drawer or under the seat of a car or truck. The HD-100 is TSA compatible for airline use. Features Sturdy Steel Construction (16 ga.) Quick and Secure Soft Touch Combo 1,000+ Combination Options Piston-assisted opening Lighted Interior Tamper Resistant Design Key Backup Security Cable Included 9v Battery Included Product Specifications Exterior Dimensions: 2.5 x 10.8 x 8.3 (H x L x W) Interior Dimensions: 1.3 x 9.25 x 6 (H x L x W) Weight: 6.25 lbs.