Earth Friendly- Washable Paper-Woven Coaster The paper cup mat is made by 100% natural wood fiber. There are several features of "Paper Tea Coasters". 1. It can be cleaned and dried with water and detergent. 2. Made by weaving, give it weaving texture of traditional bamboo weaving or rush craftsmanship. <Paper Cup Mat for Tea Drinking> A lifestyle product combines oriental aesthetics and earth friendly concept. Product Specifications: Material: 100% natural wood pulp fiber Size: 12x12 cm Weight: about 7.5g/piece Washing guide: 1. Gently scrub with clean water, detergent and brush. 2. After cleaning, put it in cool place and dry naturally. Remarks: Green tea color will be fade slightly after cleaning and there is no affect the function. The other color coasters have no fading concerns.