Nimble Sports' Non-Adjustable Bar is 4ft High. The base is 4 feet wide and will fit a normal 4X8 gym landing mat. The wood bar is 1-1/2 inches round with 100lb weight limit and is intended for beginner to intermediate gymnasts. If your gymnast is 70lbs and/or level 3, we recommend base extensions. Nimble Sports guarantees everything sold with a 1 year warranty.