These may contain sesame labels are the perfect way to keep disastrous things from happening, whether at a school, a medical office, or anywhere else you can think to use them. The fluorescent blue with black lettering sticks out against any background. These stickers use a permanent adhesive – so when they are applied, they stay stuck. They are durable in extreme temperatures as well. That means you can use these on food products that are stored in the fridge or freezer. Keep everyone safe no matter where they are. Safety is key! Even though the adhesive is permanent, it removes without leaving a residue on clothing. If necessary, kids can wear these labels on their shirts without ruining the apparel. To write on these may contain sesame labels, use a pencil, permanent marker, or pen. The stickers are 1.5-inch round which is the perfect size for food containers. Big enough to be visible, but small enough to avoid obscuring other important information. Keep everyone safe with these labels.