These wool dryer balls are made from 100% natural wool. They are guaranteed to naturally soften your clothes and reduce static cling without the use of liquid fabric softener or dryer sheets. The mesh laundry bag is perfect for washing delicate clothing, and protects against snagging and tangling! The breathable, fine mesh allows for optimal cleaning. The dryer balls are safe to use and great for babies or for those with sensitive skin. Shorten your drying time and lower your electric bill! These natural wool dryer balls will last for over a thousand loads. Recommended use: For small to medium loads, use 2-3 balls. For larger loads, use 4-6 balls. To refresh, simply place each one in a thin sock and run through a hot wash cycle with laundry detergent and dry on high heat.