[Easy Installation]----You will receive 1 piece 15 minutes sauna hourglass, 2 pieces screws. Simply attach to the wall with 2 screws. Thanks to the sinking in the wood, these do not interfere with the rotation of the hourglass. [Clear scale]----Easily legible 15-minute scale with arrows that mark the corresponding time interval of five minutes.<br High Quality----It is made of wood, glass and white sand and is highly heat-resistant. Therefore, it can not only ensure the safety of the sauna, but also extend the service life. [Wide Application]----This Sauna Hourglass Timer can withstand the hot and steamy environment of a sauna. It can also be used for other purposes, in classrooms, yoga or exercise rooms, or for other timed purposes.