The Dosing Capsules are compatible with all S&B Vaporizers and are designed to make filling much more convenient. You can fill ground herbs into the Dosing Capsules in advance and replace the capsule for a new one once depleted. Additionally, using the capsules will help keep your Filling Chamber clean and reduce maintainance. The Capsule Caddy is a handy Dosing Capsule holder for your key chain. It is perfect on-the-go and holds up to four Dosing Capsules. The Capsule Caddy is odor proof and waterproof!