Gymnastics Bar Adjustable 3' to 5' Model DX Barney Purple, 1.5" Dia. Solid Hardwood, Very Sturdy From Gym2dance Assembly instruction is online at our GYM2DANCE website. Biggest foot print without adding extension 57" x 53", New Improve hardware and bolts Double ultra thick steel tie plates (even more stable) & Ultra thick rubber pads (over  thick. Non-slip and protect your floor) 1  diameter solid oak dowel (competition standard) & Double locking Mechanism, one spring loaded knob and one lock down knob (safety) Adjustable from 3 feet to 5 feet at 5 interval (convenient); Welded Triangle Support Plates at the base (even more sturdy and pleasant to see) & Stainless vertical support tubes