The Ucan by Innokin is a 10ml stainless steel leakproof e-juice container with screw-on cap and attachment for a keychain or similar holster. Fill the ucan with your favorite juice and take it with you. The bottom spring-loaded push-button dispenses liquid from nozzle making it super-easy filling on the go. No more worrying about spilling or leaking!
This a a good addition to my vaping experience BUT (you knew it was coming) take special care to ensure both levels are screwed on tight. Makes your keys extra heavy but well worth it. I'm thinking of buying another one for a vaping friend