Ovulation timing check panty liners, 5 count. - Brand: Sofy - Product Name: Panty Liners for Checking Ovulation Timing - Quantity: 5 count - How to Use: Check ovulation timing with the indicator - Made in: Japan [Product Description] Just wear it! These panty liners allow you to check your ovulation timing just by wearing them like regular panty liners. Due to shipping costs, the product will be shipped without the box.