With each order you get 4x coasters that come in 1x size, are made with a high-gloss top and feature a cork back to prevent sliding.
 
.: High-gloss MDF top
.: Cork back to prevent sliding
.: 0.16" (0.4cm) thick
.: 4-piece set
.: One size: 3.75" × 3.75" (9.5cm x 9.5cm)