... for long time School furniture with adjustable desk and chair.1)adjustable desk and chair.2)adjust range:desk :580-780MM,chair ... on the deskF,The scale mark shows the high of desk,chair and the students' stature in standard sizeG,Let study relax ... BY CHILDRENSEAT WITH AIR HOLES,SITTING SOFT AND NOT FEEL HOT AND TIRED FOR LONG TIME SITTING ,COMPARED TO THE WOODEN SEAT ...