The front is wool felt, and the back is felt fabric. This is a slightly thick, rounded apple brooch. Approximately 3.8cm in diameter (brooch pin 2.5cm, made in Japan) Each item is carefully made, but please understand that these are handmade products, so minor imperfections are to be expected. If the wool felt part becomes fuzzy, please trim it with scissors instead of pulling the fibers to keep it looking neat.