Boingo fasteners are a fun way to fasten cloth diapers without having to use diaper pins. Say goodbye to sharp pins and strange octopus looking devices. Boingo is here! Simple to use, boingo's come in a pack of two. Use one for a smaller baby and two for a large more mobile baby, they are one size, so there is no need to buy a bigger size later! So Ditch the Pins, because Boingo is in!