Midwest Matrix Vehicle Pet Barrier Have you dog safely secured behind you. The quick set Omni-Adjustable installs in minutes! Easy grip knobs with spring loaded pins allows you to lock the adjustable bars quickly and securely into position. Tubular construction easily allows for adjustment out of view when not in use. Features: · No Tools Required · Easy Grip Knobs with Spring Loaded Pins for Quick and Safe Adjustment · Can move bars down so it is Out of View when not in use Item Specifications: Size: 4 Bar 6 Barw