The TWIST mono-tube wheelchair features built-in growth, no new parts or growth kits required. It’s sized from 8x8" up to 15x16" and offers 2" of seat width growth and 3" of seat depth growth. The TiLite Tru-Fit system uses an infinite adjustment mechanism to fine-tune the TWIST. A center-mounted push handle option is height adjustable and enables Mom or Dad to lend a helping hand (or to remove the handle when no extra push is required). The 1" aluminum frame design allows easy installation of seating components.