First Spear Split Bar Tube, Male & Female SetFirst Spear 4" Split Bar Tube, Male & Female Set Tubes Quick Release technology allows end users to don and doff in seconds. Single handed operation with a two motion quick release allows you to engage the lift gate with 3 to 4 pounds of force and slide in either direction to release the buckle. Ditch your cable, faster re assembly and repeatable fit every time. Tubes Fasteners eliminate the need for additional layers of fabric and hook and loop