SPILL-PROOF FROM FIRST SIP — NO MESS, NO STRESS: Designed for babies beginning their cup journey at 6+ months. The spill-proof +Cut straw and flip-top lid help prevent leaks when your little one tips, drops, or carries the cup. Built for the messy moments of learning to drink—without the mess. SAFE FROM THE INSIDE OUT — PREMIUM PPSU + SILICONE: Every part that touches your baby's drink is made from premium PPSU or food-grade silicone. No metal or microplastics in the drinking path—just thoughtfully selected materials designed for everyday feeding and drinking. EASY TO CLEAN — TOP-RACK DISHWASHER, MICROWAVE & STERILIZER SAFE: All parts fully disassemble for thorough cleaning. Top-rack dishwasher safe, microwave safe, and safe for boiling or steam sterilization. Durable PPSU and silicone are designed to withstand repeated cleaning and daily use. TWO STRAW STAGES — SAME SEAL, DIFFERENT BITE: Both stages share the same leak-proof cross-cut straw and flow rate — only the firmness differs. Stage 1 (6M+) is soft for new gums and first sips; Stage 2 (12M+) is firmer to resist biting. Start with Stage 1, upgrade when chewing begins. 360° ROTATING HANDLES — EASY GRIP, EVERY LAST DROP: Soft handles rotate a full 360° to follow your baby's hands — no awkward wrist twisting. They tilt with the cup, so your little one can drink down to the very last drop. Grosmimi PPSU Straw Cups are easy to use. They don't leak when shaken and the silicone straws are soft that babies can easily suck. They are suitable for babies after six months. The Cup Comes With Stage-1 Straw kit.