Yoga balls in classroom 

I think its a great idea ive been getting calls from the school about my daughter falling asleep in class , now ive found the solution ! We have one at home im on it and I feel happier more motivated etc . Going to buy one for my daughter to use in her class !

My class is aloud to sit on yoga balls but we have to bring one from home and it has to fit under our desks about 55 cm.

which balls are ranged stay inflated how big are the balls

I sit on them in my school