MADE IN THE USA Since 1995 - McCarter Coasters are truly the best DRiP drinkers on the market today! Use them on your kitchen counter, your coffee table, your night stand, end table, patio - anywhere you might want to set a drink. Use the DRip drinker coasters in every room of the house. Once you try them you will never want to use any other brand of coaster. Fantastic gifts for men, office friends, house-warming and most any occasion..All the moisture disappears and the coaster will never stick to your glass. The porous nature of the clay will allow all liquids to seep slowly into the clay - Other materials do not work as well. 100% natural earthenware clay is the best material for maximum absorption. Hand carved design from clay - 27 years of handcrafted excellence in coasters!.McCarter Coasters are extremely absorbent. Condensation from your glass will seep into the porous clay coaster and take-in any liquid. No more drips or stains! Continues to soak-up all day. We don't know where the water goes! Normal use will render a long lasting coaster that will need very little care. To remove stains, spot clean with a mild bleach product. Rinse with water and allow to dry. This will restore the coaster to its original condition..They don't stick to your glass! These are the first coasters I've used that actually work with glasses that sweat. My glass doesn't stick to the coaster and if water sweats off the glass it is absorbed into the coaster. They work wonderfully! There are so many patterns to choose from - you can find something for everyone. The fine textured detail is embossed giving them dimension while the natural off-white color goes with any decor..Set of 4 - Measures 4 3/8" diameter with cork feet to allow air circulation which prevents moisture from being trapped on the inside and the bottom. Dishwasher safe - You will NOT be disappointed!