These Geocache labels are a great way to immediately identify a geocache in the wild. The material is durable 1ml vinyl with a permanent adhesive. These labels have a location to write in your cache name and contact information in permanent marker. They are available in 3 sizes. Small, 1.75" x 4". This label works well on film canister sized containers or larger. Medium, 3.5" x 6". Large 5" x 10". This label will fit nicely on tupperware containers or standard ammo boxes.