LARGE 3 inch balls with storage bag. New Zealand 100% Wool Dryer Balls Set of 6 All Natural Fabric Softner Non Toxic. Wool dryer balls are the most popular type of dryer balls available. This type of dryer ball is popular because it features non-toxic, natural materials, unlike other fabric softener solutions. Wool dryer balls make the least amount of noise in the dryer because they are softer than their plastic and rubber counterparts.
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