Features: Dimensions: 9″ x 12″. Indoor or outdoor use. Ideal for the re-habilitation of wildlife. Perfect for Rabbits, Guinea Pigs or Ferrets. Rounded edges to take away a chewing surface. Cord entrance and the first 18 inches of the power cord have been capped with steel. Holes in the 4 corners of the pad are the perfect anchor points to keep the pad in place. Only 25 watts used to keep the indoor or outdoor pet warm even in the coldest of climates. Screws can be used to anchor the pad on wood surfaces or wired in place for wire floored cages.