12 Pcs IO Replacement Heads Compatible with Oral B IO 2/3/4/5/6/7/8/9/10 Electric Toothbrushes, Brush Head Medium-Firm Bristles Compatible with Oral B IO (Black/White)

Compatibility: Replacement Heads Compatible with Oral B IO 2 3 4 5 6 7 8 9 10 Electric Toothbrushes, Brush Head Medium-firm bristles Compatible with Oral B IO | Deep Cleaning: With double-density bristle technology, cleaning efficiency is increased by 100% | Easy to Replace: Simply pull out the old brush head along the handle and insert the new one to complete the replacement. | Smart Bristle Fading: The bristles will fade in color over time, prompting you to replace the brush head | Multi-pack: You will receive 12 brush heads, providing a long-lasting supply.