4 fluid ounces. Maxwell & Friends Potty and Wheel Rub is Maxwell approved! Spray or rub this on the wheel and the floor of the litter box daily. Rubbing this on the wheel will help to keep your hedgie's feet soft, but that's not the only benefit -- poop slides right off of the wheel so your hedgie isn't running the doo-doo marathon each night and wearing “poop boots”. It does not cause my hedgie to slip off of the wheel when running. Also, rubbing this on the bottom of the litter box before adding litter (I do this daily) lubricates the potty so that most everything slides right out before cleaning and adding new litter at the next cleaning. Maxwell would like for you to know that the scent of the 100% pure therapeutic grade lavender essential oil is not overpowering and he appreciates a nicely scented, clean potty.
Litter Training Hint: First get your hedgie used to the mild lavender scent, then rub the bottom of his litter box with this and if he's like Maxwell, he will litter train in no time. Maxwell has excellent potty skills with the occasional rare relapse if he is mad at me!