Shop › UNMC Sign Coaster Image 1 of 1 UNMC Sign Coaster $6.00 Pricie is per coaster.Each coaster is polyester with an open cell black rubber backing. The coaster is 4" Diameter x .22". Add To Cart Added! Pricie is per coaster.Each coaster is polyester with an open cell black rubber backing. The coaster is 4" Diameter x .22". You Might Also Like Mister Toad Coaster $6.00 Jerico's Coaster $6.00 Homer’s Record Store Coaster $6.00 Blue Jays Retro Coaster $6.00 Locomotive # 6900 Coaster $6.00