WooCommerce sale flash plugin allows you to offer a discount on specific products with Countdown box. You can start countdown just by scheduling sales with a starting and ending date. You can extend or remove offer before its expiry. You can upload banners that display product promotions by using WooCommerce sale flash plugin. You can apply fix or percentage discount in this plugin.  You can also upload a banner for specific events or seasons. This plugin matches the needs of seasonal sales. Cost of this plugin is just 29$ with 100% money back guarantee.