One piece design, carefully engineered for lighter weight and added strength. Battery fits snug, eliminating movement that causes premature wear and shorter life. "Window" to easily view battery specs. CNC Cut from 10GA. (.130) Cold Roll steel plate Includes self-clinching (PEM) nuts pressed onto the mount Finish: Bare Steel Six 1/4" bolts w/ nylock nuts included for securing battery Mounting: 4 - 1/4" countersunk holes in bottom or direct weld **Lifetime No-Hassle replacement!