Roll N Lock Cargo Manager for 99-07 Silverado/Sierra w/Bedrail Caps 8 Ft. Bed Model CM218Roll N Lock Cargo Manager Rolling Truck Bed Divider, Works Only with Roll N Lock Covers, for 1999 2007 Silverado Sierra w Bedrail Caps 8 Ft. Bed Model CM218 Cargo Manager(R), an optional companion product for Roll N Lock, is a movable bed divider that can be positioned every 3 inch along the length of the truck bed to manage and contain lightweight cargo. Controlled from the driver's side, Cargo Manager is repositioned by simply squeezing the control