A set of four colorful dog-themed coasters with a black border is displayed on a white surface. Each coaster features a different breed of dog and the letters 'L', 'R', 'B', and 'E' respectively. The dogs are illustrated in a playful manner with a cartoonish style. The coaster with the letter 'L' shows a white dog with a red collar, the coaster with the letter 'R' features a brown dog with a blue collar, the coaster with the letter 'B' has a black and white dog with a red collar, and the coaster with the letter 'E' displays a white dog with a