The pre-school buddy desk grow kit will make an existing pre-school buddy desk the grade school height, alleviating the need to purchase a new desk. the grow kit consist of a completely new set of grade school size legs that will replace the existing pre-school size legs on your desk. once the grow kit is installed, the look and function of the desk is identical to a factory ordered grade school buddy desk. the grow kit will raise the seat an additional 2-Inch from the floor and increase the distance between the seat and desk top 2 for easier entry plus increase the desktop height an additional 4-Inch. before ordering the pre-school buddy desk grow kit, please measure the height of your existing desk. the grow kit is designed to be installed on a desk that is 19-Inch tall from the floor to the top of the desktop. if your desk is 23-Inch tall, then it is already the grade school size. also, please make sure that the seat on your desk is attached to the frame with 3 (three) bolts and not.