Used for less than six months. Approximately 200 plus a few extra pieces (about 10). 7 white pieces are new. Total of about 220 pieces! The lowest price online is around 33,000 yen to get everything! It's warm, but I'm always a little worried about it slipping since it's a mat! If you'd like, I'll sell it to you at a lower price! If you were to buy them, it would be about 1500 yen for 10 pieces ^_^ Soft fleece material, white and beige checkered joint mats, perfect for children's rooms and living rooms. - Color: White and beige checkered - Material: Soft fleece material - Size: 30cm x 30cm (11.8 inches x 11.8 inches) - Design: Joint mat - Features: Non-slip - Uses: Perfect for children's rooms and living rooms There are over 200 pieces. There are also edge pieces, so cut them as you like. Thank you for looking.