Secure your cargo load with ease so you can be Ready for the Road Ahead , with the Shur-Co Bullet 4-Spring Straight Arm Complete Electrical System. Thanks to its electrical components, this motorized replacement arm is able to effectively cover your load with tarp for enhanced protection and security. Designed with cast steel spring enclosures and powder coat finishes for enhanced durability. FleetPride is your First Click in Heavy Duty .