West Paw Zisc Tough Dog Chew Toy - Glow in the Dark stretches fetch deep into the night, while still being completely doggie-safe, durable and recyclable. Just put in a window or under a bright light for five minutes and you're good to glow. Fetch for years with super-durable, perfect dog frisbee. Go have fun! Watch the glowing fun in action! Zisc glow is the durable, glowing dog frisbee. Dog toys made from Zogoflex® and Zogoflex Air are completely non-toxic, BPA-free, phthalate-free, latex-free and FDA compliant. Made in the U.S.A.