Our Interlocking, or linkable, lightweight plastic barricades each measure 79in. long by 39-3/8in. hight & features anti-trip, 360-degree swivel feet for maximum stability, even on inclines or uneven surfaces. Multiple barricades can be linked together to create a contoured safety barrier. Place at a 90-degree angle or in a straight line. Barricades have pre-drilled holes for easy sign installation. Signs are optional and sold separately M922, M924, M926, M928.