Amazon.com : YMPBO Replacement Heads for Oral B Braun Toothbrush EB50 Cross Action [Safe Non-Metallic], 16 PCS Heads and Universal Stand Holder, Extra Soft Dupont Bristles for Gum Care and Plaque Removal :
Oral B EB50 Toothbrush Heads Replacement Soft Bristles Rotation Type for Oral-B Electric Tooth Brushes Adults Oral Hygiene Clean - AliExpress