Made from 99% recycled paper, back-2-nature's flatter and ridged pellets allow moisture to be absorbed faster, leaving the most delicate of feet dryer and less prone to irritation. With a flatter surface area, back-2-nature offers a safer experience for little paws and ankle joints as the pellets don't roll around when hopped or scurried across. Sterile at point of manufacture, Back-2-Nature is low in dust reducing irritations that occur from hay and pine shavings.