The Dirty Devil Boater's Throw Bags contain 70' of rope and features a side release buckle for secure attachment and rapid release! Made of 420 D packcloth and 1000 D reinforcement material, these throw bags also have drawstring and cordlock closures.With a foam insert assuring the bag remains afloat, the Dirty Devil Boater's Throw Bags also contain 7mm of polypropylene float rope. 1600 lb strength.