The Pelican 1050 Micro Case is great for protecting small valuable items. It will keep your expensive GPS, cell phones and other electronics and documents safe and secure. The case is watertight, crush proof and has a clear automatic pressure purge valve. The 1050 Clear Micro case has a matching and speed lock and liner. It includes a ring and a lanyard for easy attachment. This case is not meant to be used while swimming and shouldn't be submerged.