Nothing completes a playground quite like the Sportsplay Primary Tripod Swing. A true classic attraction kids can't resist. Welded steel chain with cut-proof belt seats mean comfort and durability. Featuring self-lubricating swing hangers, this set is available in a variety of sizes. This product is IPEMA Certified with "International Play Equipment Manufacturers Association" The use of IPEMA Certification Seal signifies that the manufacturer has received written validation from the independent laboratory that conforms with the requirements of ASTM-F1487-11 Sportsplay Since 1992, Bio Bizz has been producing custom soil mixes, natural plant nutrients, and additives for organic gardeners. From its legendary origin in Amsterdam to the present day in Groningen, Bio Bizz is the most experienced and recognized supplier of premium plant food in the Netherlands