COSLUS C30 Sonic Electric Toothbrush w/ 4 Replacement Heads (Black) $4

COSLUS C30 Sonic Electric Toothbrush w/ 4 Replacement Heads (Black) $3.99. YIINRG via Amazon has COSLUS Sonic Rechargeable Electric Toothbrush (Black) on sale for $3.99 when you apply promo code RK89ZPNC at checkout. Shipping is free w/ Prime or on $35+ orders. Note: Amazon promo codes don't always apply seamlessly. If you run into this issue, refresh the page, re-enter the code, or revisit the cart page. Expired code: XY2K5W4M