The Chicco Perfect Cup Pink 200 ml was designed to facilitate the transition from bottle to cup. Its 360° silicone membrane, activated by the lips, allows drinking from any point around the rim, but prevents leaks when not in use. It has a double air valve for a smooth and comfortable flow, removable ergonomic handles, and a transparent membrane so the child can see the liquid, promoting learning and independence. The membrane is also removable, transforming the cup into a regular cup as the baby develops drinking-breathing-swallowing coordination.
No specific ones found, but as a good practice: read all instructions on the packaging/manual (along with warnings for safe use).