This new Mini Munch Mitt Mini is a smaller version of the standard size Munch Mitt Baby Teething Mitten but with all the same great features such as sensory stimulating black and white pattern, bright color contrast and fun crinkle noise throughout the mitt. The "mini" has slightly softer 100% silicone. The Yellow Munch Mitt Mini Baby Teething Mitten was designed for petite handed and preemie babies from 2.5 months - 5.5 month or until they are able to remove the mitt themselves. Dimensions: 2.75w x 3.75h. Opens to 1.5 inches wide. Note: If measuring please do so when babies hand is fisted as most babies that age will keep their hand in a fist.