Hisonde 18650 Plastic Sleeves Tube Aadaptor for 18650 LED Flashlight

Which battery will it fit? 18650 battery,18650 rechargeable battery,18650 li-ion battery,3xAAA battery. Especially for 18650 battery. Reminder. This product just a battery protective sleeve,a tube adaptor for battery,not a storage container or case/box.. And it is also a spacers for 18650 Batteries to replace the AAA adapters.. Protective Sleeves Only,Battery and flashlight not include!. Package contents 5 x Protective Sleeves