10 Pieces potty training dinosaur stickers toilet targets stickers color changing pee targets for boys training use with or without potty training charts 3.15 inches diameterGreat for boys:The potty training dinosaur stickers work well in toddler potty training, as kids love to see the image appear on contact with their urine and disappear on contact with cold water.Suitable size:The potty training dinosaur stickers are about 3.15 inches in diameter, the general size fitting most potty and suitable for most boys to use.Specification:Material: PVCColor: as pictures showSize: diameter: 3.15 inchesPackage includes:10 x Potty training dinosaur stickers Note:There might be small size error due to manual measurement.Product color may slightly vary due to photographic lighting sources or your monitor settings, please in kind prevail.