Small cache about the size of a film can, which is an easier find for kids and beside what, my kids call the world’s biggest sand box. Please do not over tighten the lid and deform the seal. Our intention of this cache is for kids. We would like to keep a trend going of placing a picture drawn by a child to replace the previous drawing and in your log post the picture you placed and the location of your hometown, province/state, and country. I recommend using a piece of paper about 2x2 inches to fit/fold in the cache