All Cardlocks are designed with the highest quality in mind while being cost effective. All Cardlocks are designed and built to last. BeLine knows how important performance is when it comes to electronic door locks in any facility. All electronics and mechanics are superior by design. Additionally, all Cardlocks are stainless steel to prevent rust. If you have a Cardlock that is painted, BeLine uses quality bonding agents to guarantee a long lasting and beautiful look.