The Uwell Caliburn Koko Prime is the brand new big brother of the ever so popular Caliburn Koko device, now in the UK. Its designed by Uwell who have stunned the community over and over again with their incredibly popular devices that are some of our bestsellers! The Uwell Caliburn Koko Prime Kit comes in the pod style stealth vapes. 'What's a stealth vape?' you ask, Well simply say it's a small and discreet style of kit that focuses primarily on flavour over vapour production, although the Uwell Caliburn Koko Prime does produce a pretty decent hit.