Mobile Radiation Safety Barriers Adjust-A-Height™ Barrier Adjust-A-Height™ Barrier: VersatileAdjustable mobile barrier Offering easy access and storage. $1.00 Request a Quote Mobile Barrier Adjustable Height: 45½” to 68″ with an internally counterbalanced mechanism. Base Width: 31″. Protection: 1mm Pb equivalent. Panel: 28″ wide, 0.5mm lead equivalent RayShield® Acrylic. Features: Strong, lightweight, versatile; easy access with 7″ legs and casters; convenient storage.