https://amzn.to/4k7h96R Grinest Rechargeable Cordless Water Dental Flosser w/ U-Shaped Nozzle on sale for $32.99 - $16.50 (clip the 50% off coupon on the item page) - $6.60 (apply promo code Y5GH7FPD at checkout) = $9.89. Shipping is free with Prime or on $35+ orders.