The Conversion Kit combines the benefits of standing and fidgeting, allowing students to move and channel their energy while improving attention and focus. Simply take off your desk's old leg extensions, put on the new, and attach the FootFidget Footrest. Desks will realize heights between 35"- 41" depending on desk style. This Kit includes 4 custom leg extensions for classroom desks with either 7/8" or 1" diameter legs (your choice - see below), and one FootFidget Footrest which includes clamps, clamp covers, medium resistance cords, and foam covered roll.