Combo Gymnastics Bar Adjustable 3' to 5' Model LE Red, and 8' X 4' X 2" Thick Blue Mat By Gym2dance The assembly instruction is online on our website at gym2dance.com Adjustable from 3 feet to 5 feet at 5 interval (convenient); 4 feet wide (fits any 4 feet wide mats) x 57 foot print (very stable) and & Stainless vertical support tubes 4 stainless steel turn buckles to stablize vertical poles + stainless steel vertical inner tube (will not rust from scratching) 1  diameter solid wood (competition standard) & Double locking Mechanism, one spring loaded knob and one lock down knob (safety) 8' x 4' x 2" thick Blue Gymnastics Mat