Junior sized small PAHL desk from IKEA. White, small and lightweight, adjustable height, great condition. Sells new for $99.
From IKEA website:A small white desk that can follow your child from early childhood to adolescence. It’s adjustable at 3 different heights and has practical cable boxes for power strips for your electronic devices.
HEIGHTS: The desk is easily adjusted to 23¼", 25⅞" or 28⅜" by using the knobs on the legs.