Combi's popular "Rakumagu" 3-piece set Used for 4 months I was also using various other mugs, and since I couldn't use the first straw and cup well, I only tried them a few times. The leak-proof straw was also used in conjunction with other mugs during the usage period, and I haven't actually used it for even a month. *Sterilized ◼︎Around 4 months old "First Straw" ◼︎Around 5 months old "First Cup" ◼︎Around 6 months old "Leak-proof Straw" - Brand: Combi - Color: Clear/Brown - Features: With two handles - Material: Plastic - Capacity: Unknown (with markings) Thank you for viewing.