From VOGUE:

After getting requests for a handbag-friendly size, BKR's San Francisco-based founders, Tal Winter and Kate Cutler (Clarendon parent), relished the chance to scale down. "We're basically obsessed with tiny, cute things," says Winter, citing their travels to Japan, where the two fell in love with the idea of miniatures. For those whose goal is lightening up an oversize tote while upping their daily water consumption (and the beauty benefits that come with it), the Teeny's shrunken proportions certainly offer a unique solution. 

Winner will get to choose the color/style (+/- heart) of their very own 250ml Teeny!