This is a set of two CASIO sauna watches, one black and one white. The items are unopened and will be shipped as is. Please understand that it may take some time for shipping. The sauna watch is a wristwatch created specifically for use in saunas. It features a 12-minute timer function that can be switched between "Sauna Mode ⇄ Normal Time Mode" with a single button, allowing for intuitive time management in the sauna. It is designed to withstand temperatures up to 100°C and features a waterproof case and a condensation-resistant structure made of resin, ensuring reliable use in sauna environments. The simple operation and intuitive button layout allow you to focus on your sauna time without unnecessary stress. ・Functions: Time display (hour, minute), 12-minute timer (minute, second), reset function ・Water resistance: 5-bar water resistance ・Body size/weight: Approximately 40.2 x 35.4 x 12.9mm (height x width x thickness) / Approximately 24.5g ・Exterior specifications: Resin case (low-moisture-permeability resin), resin back cover (low-moisture-permeability resin), mineral glass ・Stretch curl band: Urethane resin ・Battery/Battery life: Heat-resistant battery / Approximately 5 years ・Usable environment: Saunas up to a set temperature of 100°C (use within 15 minutes while worn on the wrist)