DinkyCup is EXTRA SMALL FOR A GOOD REASON: The new 'Dinky' sized open cup is made to measure for tiny hands and mouths. Standing at 6cm with a capacity of 50ml. Perfectly sized for your little one up to age 18 months. RE-BALANCING ACTION: Whatever angle your baby replaces the cup to the table or tray, it will re-balance itself. BENEFITS OF OPEN CUPS: Introducing sipping at the beginning of the weaning stages helps promote fine motor skills, oral motor skills and protects your babies' little developing teeth. NON-SLIP GRIPPY DOTS AND VOLUME MEASUREMENT: Designed with grip and texture in mind. The whole surface of our silicone cup is covered in cute tiny grippy dots. It also includes an external and internal volume line (mm) for parents to know exactly how to fill and how much they have sipped. TOXIN FREE - Our silicone is tested to LFGB EU standards. Our products are BPA-free and Phthalates-free. Natural materials that are chemical-free, durable and easy to clean.