Avent silicone petal "let down massage cushion" for the COMFORT NATURAL Avent Manual, Electric, and double breast pumps.  It fits into the plastic breastshield.  Standard size.  

This fits the "COMFORT NATURAL" pump model.  Not the Avent Classic 

Price is for one.

We can source all breast pump spare parts, so if there is anything else you need, just let us know

Manufacturer:  Phillips Avent