Used as an alternative to the 3B where it is too large for the subjects ear canal
420-2094 - Infant Insert Tips Red 4mm/20
420-2095 - Infant Insert Tips Red 3.5mm/20
8102682 - Sanibel OAE for foam tips for Bio-Logic Paediatric Beige/100 or bags/20 (8515435)
8107887 - Sanibel OAE Eartips for Bio-Logic 6mm Infant Blue/100 or bags/20 (8515507)