Abby Bear - 4-In-1 Training Cup Set 4-In-1 Training Cup Set is specially designed for baby According to its grow stages to use nipple-cup sucking cup straw - cup straw - cup or drinking cup easy to use during its learning time. Features: The Training cup to be used as per the baby''s growing months devided in 4 stages (can be adjusted according to the baby''s practical learning status). Cup with nipple first stage suitable for babies 3 months and up. 45" tilted nipple make the baby sucking more easy. The nipple cap prevents dust touch to the nipple Sucking cup 2nd stage 6 months and up. Straw cap helps prevent the dust to touch the straw�opening Cup with straw 3rd stage 9 months and up. Straw cap helps prevent the dust to touch the straw opening Drinking cup 4th stage 12 months and up. Special vent hole and concaved treatment can control the liquid flow freely and help prevent spills