Islandoffer Approx. 500pcs Knitting Crochet Locking Stitch Markers (Color Ship Randomly) 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. EASY INSTALLATION. Strap can be installed in under 5 minutes. No drilling or tools needed. 100% MONEY BACK GUARANTEE. We offer a 100% money-back guarantee within 60 days of payment. SAFETY. To prevent the straps from coming off while swinging, we designed our carabiners to include a heavy duty screw lock. PORTABLE. Super Bear Power Strap Kit are easily portable - taking them down is as easy as putting them up - take them with you camping, back packing, to the park, to school, wherever.