The document describes uOpen, a new UK subscription box marketplace launching in June. It aims to introduce more consumers to subscription boxes through marketing, showcase available boxes in one place, and provide a positive customer experience. Subscription box sellers can list on uOpen for free at launch and pay a percentage of revenue only when a box is sold. uOpen will actively market listed boxes and handle payments and customer service while sellers fulfill orders. Sellers can set up multiple boxes, variants, and personalization options and manage their listings through an online portal with reporting and support.