18 Count( 3 Packs with 6 In each) Oral-b Healthy Clean Toothbrushes, Medium Bristles (Assorted colors) for $9.21 with S&S and $5 multibuy discount.
https://www.amazon.com/gp/aw/d/B07MP4SVQK
Note: Be sure to add 3 quantity to see the $5 multibuy discount at checkout.