Concrete Hexagon Coasters, Small White Imagine a concrete honeycomb  hey, what a great idea for a coaster! Mind you, this isnt the kind of concrete youll find under the floor of your basement. The mix is a unique recipe devised by a craftsman after years of effort. These pieces are all hand-made in molds from the mix, which makes each one unique. After hardening theyre hand burnished and have two coats of carnauba wax applied to them. The result is an incredibly strong, smooth, and tactile surface that is more akin to ceramic or aluminum than it is to the stuff in sidewalks. Even better, because of this process pieces will only get more beautiful with time, developing rich character and patina as they age. Sold in sets of 4. The coaster with small 1/4 inch (0.6 cm) hexes measures approximately 4 x 4 x 3/8 (10.1 x 10.1 x 0.9 cm). All coasters are backed with a cork bottom for added tabletop protection.