Material:Environmental PVCColor:RandomSize: About 3.5-4.5cmPackage:Included 10 PCS Laundry BallsFunction:ECO Friendly Anti-static and Anti-Knot Cleaning BallFeature:High Quality Environmental PVC Material ,Durable And ReusableUsefully Protect Clothes From Being Twisted or Tangled TogetherNote:The color is send by random.Please allow 0.1-2 cm differences due to manual measurement.please clean after use, hang dry in a cool, ventilated place.Can prolong the service life.