Don't be a "Yakety Yak" to me about drinking this "Love Potion Number Nine" and ruining the end table top if you don't have OXO Coasters! Contain drips and protect furniture with OXO Good Grips Coasters. The coasters are reversible and both sides are concave to contain liquid. A grooved pattern holds liquid to prevent leaking, and the grooves promote air flow so the coasters wont stick to glassware. These sturdy silicone coasters are safe for all types of furniture surfaces.