DriWater Time-Relase Water 32 oz. Replacement Gel Pac (5 Units) for the DriWater PT Delivery System GREAT QUALITY. SuperBearPower swing strap are the same quality and strength as seat belts. Holds up to 1000 lbs. It has a double box stitch which makes it much stronger. These extra-long straps for hammocks are adjustable, which means you can wrap them around most any size tree - from small to large - and avoid damage. Safe and Fun for the whole family.