Brand from Japan: Hogu. Hogu series Yubitamago at bath time. Hogu recommends to use Ofuro de Yubitamago for those who would like to massage during bathing, or who would like to get a synergistic effect while bathing pomotes blood circulation. This Yubitamago at bath series was designed for using while bathing and it has a hole for drainage. 3 stainless steel balls rotate 360 dagrees smoothly, and massage your face with appropriate force adjustment, even without massage oil. Also 3 stainless steel balls are detachable and you can easily clean the interwining sebum and dirt.