The world’s original and number one selling strap wrench. Invented by Boa. The Standard Boa strap wrench is ideal for many applications including plumbing, automotive, A/C installation and maintenance, pool filters, oil filters etc., the list of uses is endless. Provides over 2000lb of pressure without marking the workpiece. The reinforced braided rubber strap enables a wide range of uses on any shaped object and works on all materials. Suitable for professional, industrial or DIY use. 25 million plus customers can’t be wrong! If the Standard Boa isn’t big enough for your job then you need the Boa Aluminium which has capacity up to 275mm (11in). Capacity: 160mm (6.3/4in)