With Dynatrap Glue Card Refills, you can enjoy non-stop protection from fruit flies, house flies, moths, gnats, and more. Compatible with Dynatrap Indoor Fly Traps. Enjoy uninterrupted protection from indoor flying insects with Dynatrap Glue Card Refills. When used with the Dynatrap Indoor Fly Trap, these glue cards trap fruit flies, house flies, moths, gnats, and more. They are easy to use - simply peel the backing off the glue card and insert it into the compatible trap. Place the trap wherever you see insects, including near houseplants, exterior doors, pet areas, in kitchens, garages, bedrooms, and other areas of your home. Once drawn to the device, the glue card securely holds insects in place until disposal time. Trapped insects are discreetly hidden from view on the back of the glue card, so you will never have to see them. Be sure to replace the glue card every 30 days or when it becomes full.