The Brush-Baby Babysonic Replacement Heads are designed specifically for toddlers aged 18-36 months. This 4 pack of replacement heads is made from durable plastic material and is suitable for electric toothbrushes. The clear colour and elliptical shape make it easy to handle and use for young children. Manufactured by Brushbaby Ltd in the United Kingdom, these replacement heads are essential for maintaining good oral hygiene for your little one.