Stainless steel canister with gasket seal
Medium and large have a 3 clasp closure
Extra small and small have a twist top closure
Comes with one Boveda packet that slides into the lid
extra small – 3″ x 1.25″
small- 3″ x 1.75″
medium- 4″ x 2.25″
large- 5″ x 3.5″