The Max Mobile Lead Shield with H-Base is a durable lead shield with 0.5mm PbEq. With all steel H-base for maximum stability, this Phillips Safety features hardened chrome steel post and a Posi-Lock height adjustable arm with spring-loaded pin. With an open base design, it has base overall dimensions of 24″ W x 24″ D, and base inside dimensions of 20” W x 16” D. In addition, this lead shield is available in two different sizes – 36” x 36” and 48” x 48” – and features a heavy duty 4-caster base.