Purchased in January 2025 and used for approximately one month. ◎ A baby bottle with excellent durability, safety, and ease of use. It's designed to be roll-resistant and easy to hold. ◎ Made of heat-resistant glass. Includes a durable silicone rubber nipple (Slim Type Nipple S). 【Slim Type Nipple Lineup】 ● S (Round Hole) 0 months and up ※ For newborns ● M (Round Hole) 4 months and up ● Y (Y-shaped) 6 months and up ● L (Round Hole) 9 months and up ※ For babies who want to drink more than with the Y-shaped nipple Thank you for looking.