FEATURES:·Double Protection Design:Base enhanced protection design, four points to withstand weight, safer and more reliable. Swing hanger and screws are made of stainless steel 304. Permanent Antirust. Suitable for indoor and outdoor use.·Spring Safely Support 400 lbsThe innovative spring contains a safety protection chain to prevent damage to the spring, support up to 400 lbs.·Fast Easy Set upDrill the holes and install the hanging kit.·VersatileIndoor or outdoor, swing your hammock, hammock chair, swing, training yoga, porch swing, punching bag! Rain or shine, enjoy your life! PACKAGE INCLUDE:·1 Reinforced swing hanger·1 x Heavy duty spring·1 x Carabiner·1 x Drill bit for wood·2 x Wood screws·2 x Expansion boltsTips:1. Check the welds are in good condition first.2. Make sure the beam can load the max weights you need to set up.3. Get experts to drill holes if you are not sure how to set up the hanger.4. For DIY, please refer to the specific sizing chart.5. Gradually add weights to test whether the mount set is firmly and correctly installed.We promise each product from the production assembly to the s, each link strictly checks, to ensure that customers get the best quality products and services. 30-days return ASSUREDd Our company holds our customer is the purpose of God to communicate with customers for customer service!If you have any problems with the product or installation, please feel free to contact the GW After-s team and we are happy to help you!