Profi Ii Asm. The Profi II ASM is a professional 4 point clip in harness from Schroth which includes anti-submarining (ASM) technology. This reduces the risk of sliding under the harness in a frontal impact. The shoulder straps are 3" wide and are fitted with lightweight quick adjusters. Lap Straps are 2" wide and have clip on end fittings. The Schroth compact aluminium rotary buckle includes a quicker, more positive “click” and ergonomic release lever. Supplied with 4 eyebolts. Specifications: Anti-submarining (ASM) technology 3" Wide shoulder and 2" wide lap straps Homologation: FIA 8854-1998 *By request/order.