Thank you for your interest! This is a hexagonal coaster made by connecting felt balls with thread. The felt balls are all made by needle felting. Diameter: Approximately 10.0cm, Thickness: Approximately 1.5cm The size and firmness are not uniform due to being handmade. The connecting thread may be visible, but it is not very noticeable. We hope you will appreciate it as the handmade texture. #FeltWool #WoolFeltBall Coaster