Seller1ON1 via Amazon offers members the Chromo 17" LED Safety Warning Triangle Road Flasher
, model no. CI55000350, for $24.99. Coupon code "3HU43NGV" cuts it to $17.99
. Plus, Prime members bag free shipping
. (Non-members can spend $35 or more to bag free shipping; otherwise, shipping adds $7.05.) That's $32 off list and the lowest price we could find. It features 60 LEDs and folds down for storage. Three AA batteries are required (not included).