MARFULA Gymnastic Bar Set Gymnastic Kip Bar Gymnastic Bar with Mat Gymnastic Horizontal Bar with Fiberglass Rail & 304 Arms for Kids

And there are two knobs, this also increase vertical stability. 【IT IS ONE SAFE GYMNASTICS BAR – MATERIAL】 ※ Gymnastics bar Crossbar is made of fiberglass, compared with wood, it is more durable and flexible, kids have a professional feeling as competition. ※Adjustable Pole is made of REAL 304 , all life No Rust & No Scratch. ※ Structure is made of duty steel, and surface treatment is high quality Powder coated, no rust, you can use it outdoor and indoor. ※All round Welded,more safe. And there is scale Value on adjust arm, you can adjust the exactly height without rulers, more convenient.