Product SKU: AVE41442 Simply write on with a permanent marker for quick and easy identification of all your kid's items Durable labels are great for labeling school and camping gear, lunchbox items, sippy cups, and more Features a permanent adhesive backing for a secure bond Dishwasher and microwave safe Labels stick to plastic, wood, metal, rubber, paper, ceramic, glass and more TrueBlock® technology is guaranteed to completely cover anything underneath Handwrite only with permanent marker