Neck circumference is approximately 30cm. Suitable for use from around 6 months to about 2 years old! 100% cotton ☺︎ This is a handmade item, so it is not perfect. Thank you for your understanding. *The color may vary slightly depending on the photo. For handmade items, we offer a 50 yen discount for bulk purchases. 2 items → 50 yen off 3 items → 100 yen off 4 items → 150 yen off We are selling these at a near-cost price, so we cannot offer any further discounts. Thank you for your understanding. Thank you for viewing.