The Igloo Style Heated Pad by K & H Pet Products was specially created for round or dome shaped doghouses. This item is designed in a half round shape that fits easily through the door and then provides your pooch with the luxury of choice; to curl up on the heated side of their little home, or chill out on the unheated side. The warmth provided by heated pads is more than just cozy, it also eases muscle pain and helps circulation for active or arthritic pets. The Igloo Style Heated Pad is good for year-round indoor or outdoor use and is both water proof and easy to clean.   Available in 3 sizes.