Proudly Canadian, Moss Creek Wool Works created pure felted wool dryer balls that absorb moisture in your dryer which helps maintain the humidity level. The balls bounce around creating air circulation between your clothing. The result is softer clothes that dry faster with fewer wrinkles and static cling. They eliminate the need for dryer sheets and fabric softeners. There are no fillers, dyes, perfumes, or chemicals, only pure wool. They last for 100+ loads.