Playtex Spill Proof Cup Replacement Valves Better for baby better for mother. The patented SipEase value is a replacement part for Playtex Spill ProofCup 6oz, and 9oz, and Playtex Spill Proof Training Cup. No more messy spills to clean because the SipEase valve dispenses liquid only when child sips. Easy to drink because the patented SipEase valve allows liquid to flow easily on demand.
Playtex Sip Ease Replacement Valve - Clear - Horiz