... time period ends, respectively, for 5 mins, 10 min,15min Sand timer consists of three materials, namely, from Finland's spruce, orange ... sand, unbreakable glass.The feature of sand timer:1.Place of origin:Guangdong,China2.Item No ... ends, respectively, for 5 minutes, 10 minutes, 15 minutes. This sand timer is ideal for the sauna, it can be used as ...