Soft silicone disc for Hegen PCTO™ 240ml/8oz All-Rounder Cup PPSU is gentle on baby’s sensitive gums and regulates water flow effectively, allowing for easy sipping, reducing gagging, and intake of gas. Our spoutless training cup allows tots to sip from anywhere around the rim, just like an open drinking cup. For silicone parts, it is recommended for replacement every 3 months or at first signs of wear and tear.