How to get the little balls of fabric off my upholstery

Using a fabric shaver to get the little balls of fabric off the upholstery.  The fabric felt it is common that where the cushions rug together it makes these little balls of fabric and using a fabric shaver makes it easy to make these little balls go away   Here you can see all the little ball of fabric , just like a face shaver.  You can pick up this fabric shaver at amazon for about 25 dollars