Insect Shield 23 by 16-Inch Insect Repellent Reversible Bed Use in crates or outside to protect pets from harmful pests Dual color optionsslate grey side reverses to carrot orange Removable cover for quick and easy cleaning Cover can be machine washed up to 25 times Effective against flies, fleas, ticks, mosquitoes, and midges (no-see-ums). Veterinarian approved by Dr. Katy