Fine workmanship colorful develop kids' mathematics potentialpractice counting and number skills It can be used for stacking cups small toys for babies freely changing stacking cups and exercise your baby's hands-on ability. Manufacturered by MOOMKEY. Stacking cups will help your little one exercise their color and shape recognition skills while offering hours of fun as they stack these colorful cups one on top of another This toy allows the baby to focus on playing with it and parents can have a little free time to do their own things. This bright colorful nesting cups are made from quality material tested to be safe.