Set of 2 beautiful handmade fused glass coasters. Each coaster measures approximately 4 inches by 4 inches and is backed by a protective cork backing. The backing can be removed if you wish to use the coaster as an accent tile. The Double Quartet quilt block pattern is rendered in red-yellow-blue spirit glass on a black background. Each coaster is made up of 17 individually cut pieces of glass that have been fused and annealed in my kiln. The glass has been left partially raised to prevent condensation pooling and your cup or glass sliding off.