The Heavy Duty snare is for large towing eye (Aluminium) boats over 6.5 M (21ft). If you have a smaller boat that gets very heavy use and/or rough treatment, then this would be a good option.
It is 33% bigger than the standard snare. Snare and Latch from marine grade stainless steel.
Pack Size: 423 x 182 x 74 mm (16.9 x 7.2 x 2.5 inches)
Weight: 3.9Kgs (8.6 lbs)