Set of Two (2) Dry-Packs Dehumidifying Canisters. Each 2" x 4 1/2" aluminum canister contains 40 Grams Orange Silica Gel (Non-Toxic; Colbalt Free), which protects up to 3 cubic feet. Fits Pelican Cases Silica Gel 2 x 4 1/2 Inches Sturdy Aluminum Housing Moisture Indicator lets you know when you need to bake to reactivate! Non-Toxic. Cobalt Chloride Free - NO BLUE SILICA GEL! Same Size as the Pelican 1500D Peli Desiccant