"There is only one kind of Poi you need to purchase: the Zeekio LED Poi. This LED light is multi-colored, with settings that include lighting with a strobing effect. To add better durability and style, we put a dual finger grip on the handle, made the string length adjustable, and made the balls softer and easier to squeeze for easier handling. LED Poi can be used inside but is a lot more fun for outdoor events like concerts, festivals, carnivals, etc. It's a ton of excitement and never-ending fun!"