Custom made soft rubber coasters featuring the most common Dartball board layout used in the Midwestern U.S.A. and other areas. Your choice of round or square. Ideal for under your drinks and other items. Made of soft non-slip rubber based material to protect your tables, counters, etc. It also keeps your glass from sliding off of the coaster. The square coaster measures 3.75 inches by 3.75 inches The round coaster is 3.75 inches in diameter. They are ideal for your den, man cave, bar, rec-room, patio or anywhere drinks are served. Your choice of round or square board design. Let us know which ones you wish to receive. If you do not select we will pick one for you. 3 coaster for $19.00 and free first class shipping in the U.S.A.