Yes, the Lost Mary OS5000 is designed and made by Elf Bar, but not completely the same. Elf Bar has topped the disposable vape charts, becoming the most popular e-cigarette device of 2022. Inspired by the Elf Bar, the Lost Mary disposable contains 13ml of vape juice and is rechargeable via USB-C charging cable which has a battery indicator that allows vapers to check on power levels while vaping. Green (high battery), blue (medium battery), and red (low battery) LED colors display the amount of charge left in the 650mAh battery. Elf Bar has used its expertise in making disposables and developed the Lost Mary OS5000. This gorgeous pocket-sized device is different from any other Elf Bar design released, as it has been designed in the shape of a square but with a unique planet mold surface. Elf Bar has used the a mixture of flavors to create Lost Mary flavor catalog, delivering cocktail combinations of flavors. Definitely checkout there flavor category.