Friendsheep eco dryer balls are an all-natural and organic fabric softener handmade from 100% premium new Zealand wool. Stop using single-use chemically treated plastic dryer sheets and fabric softeners that contain harmful chemicals. Mix 'n' Match all colors and designs! BAG PROMO: We'll add for free one handmade cotton storage bag and user manual for every 6 single dryer balls purchased. Extra bags and user manuals can be purchased for $1.80 (see listing).