●Feature:
1.Selected food grade silicone material. High heat sterilization and freezing resistance available. 
2.SGS certified, BPA Free. 
3.Patented ring shaped hook, easy to install. 
4.Groove line designed, no more leaks. 

●Neck Dimension:
1.Fit for Simba wide neck feeding bottle. 
2.Simba wide neck silicone discs with width 5.2cm(2.05 inches). Use with other brands feeding bottle please refer above dimension. 
 
●Materials: Silicone(-20°C ~ +120°C) 
 
Caution: DO NOT use on curved glass feeding bottle when freezing.
 
Compatible with MAM, Avent, Bibi