These small watertight tubes have a threaded/heavy duty lid. They measure approximately 1" tall by 3/8" in diameter. Being so small these geocache containers are very versatile cache containers. These capsules are sold as a 4 pack at a great low price.
Each capsule has a Rite in the Rain® log sheet.
Recommended replacement Rite in the Rain® log sheets:
3/4" x 5 1/2" 20 Pack
https://spacecoastgeostore.com/products/rite-in-the-rain-log-sheets?variant=19488898809974