4" Eastland Square Glass Coaster (Set of 4) Contemporary Square Glass Coaster is 4" x 4" with 1/8" thick glass and anti-skid feet. Clear glass coasters have nonporous surfaces that are easily cleaned and maintained. Complements and protects table arrangements. Serves as a candle holder or glass holder Coasters are great as inexpensive wedding favors or economical gifts. Smooth surface can be easily personalized with a marker or by etching. 4" Eastland Square Glass Coaster. Contemporary Square Design made of clear thick glass. Easy to clean and easy to maintain. Simply wipe off nonporous surface after each use. Quality glass coasters are 1/8" thick glass and have anti-skid feet. Coasters can be easily personalized by etching or with a marker. Eastland Coasters will protect and complement your table arrangement, while serving as a candle holder or glass holder. These Coasters make great inexpensive wedding favors or economical gifts.