Free Shipping for this product applies for orders shipping to lower 48 contiguous States in the USA only. For Alaska and Hawaii, please contact me directly before purchasing. Some additional shipping surcharge will apply to Alaska and Hawaii orders. Build with ease. This kit includes 2X of #6C1L Elbow Bracket and 1X of 6×6, 60 deg. Hexagon Elbow Bracket. It also includes two sets of swing hanger bracket kits which have stainless bushings and 850 lbs. rated carabiners. All lag screws required to mount the brackets are included in black color. The header lengths can be any length you see suitable for your needs. 1-way 90-deg heavy duty elbow bracket for 6×6 size lumber members. Designed for use with 6×6 dimensional lumber measuring 5.5″ x 5.5″. Verify lumber dim meets these specifications. Suitable anywhere you need to join two 6x6s at a 90 degree angle. 2-way 60-degree heavy duty Hexagon elbow bracket for 6×6 size lumber members. Designed to create a strong 60-degree joint between two 6×6 lumber members and attach them to the end of a third 6×6 post. Do not bury posts until you receive these brackets. Attach elbows to post top ends. Insert posts’ bottom ends in the holes. Add header 6x6s between post tops. Level the top headers 6x6s and plumb all posts. Pour dry sand around post holes to hold posts steady. Secure headers to elbow brackets using 3/8″ x 2″ lag screws. Recheck headers level and post plumbs. Adjust if necessary. Vacuum out sand from one hole. Pour cement in to hole. Move to the next holes and repeat. Highest quality materials and workmanship for high durability and long life. Smart DIY design allows easy, accurate, and safe assembly work. 1/8” high strength steel, fully welded construction. Powder painted for rust proofing.