Tree Swing Hanging Strap Kit With Swivel Mount All Swings Instantly By Neurotic Nannies DURABLE MATERIALS: The 4 foot strap is made of commercial grade nylon and is able to withstand harsh winters and brutal summers without showing signs of wear while the carabiner hook is made of industrial strength steel making it nearly indestructable. HEAVY DUTY SWIVEL: What's unique about our Neurotic Nannies swing mount kit is that we've attached a high capacity industrial strength swivel on to the bottom of the strap. This will strengthen the strap by by lessening the constant twisting and untwisting of the strap. ENHANCED SAFETY FEATURES: Due to the high strength nylon we use in our tree swing kits, each strap holds up to 500 pounds. And to prevent the straps from coming off while swinging, we designed our carabiners to include a heavy duty screw lock. FITS ALL SWING TYPES: A single strap is fantastic for spinner swings, tire swings, disc swings, web swings, and hammock swings. Purchase two straps for classic tree swings, garden swings, toddler swings, and porch/patio swings. 100% MONEY BACK GUARANTEE: Happy customers give us high ratings, so we're confident that you'll love it! We're SO confident that you'll love this tree swing strap kit that it's backed by our 100% Money Back Guarantee. If you don't love it  *for whatever reason*  we'll replace it or give you every cent back. That means that you either love it, or it's free!