●100% Nylon ●Made in the USA and Imported ●ENSURE SAFETY AND STABILITY -- Made of high-grade nickel-plated iron, corrosion resistant and durable. Fully support heavy bags up to 1000 lbs. ●SWIVEL SMOOTHLY -- The specially made nylon bushing provides a better experience. Make sure the heavy bag swivels silently and smoothly. ●EASY INSTALLATION -- Include one heavy bag hanger, a pair of bolts for the wood beam, and a spare carabiner. Just drill the holes and screw our bolts you will finish the installation in 5 minutes. ●UNIVERSAL DESIGN -- Great for all-size kick Boxing, Muay Thai Bag, swing sets, porch swings, sling swings, spinner seats, or any other swinging device for a playground swing set.