This is a Reptile One 5 Watt Heat Mat Pad for Reptiles - 14cm x 15cm suitable for Snakes, Lizards and Geckos. Reptile One Heat Mats are designed to create heat zones within the enclosure that help maintain natural heat gradients. The new range of Reptile One Heat Mats has been designed to include a built-in thermal safety cut off, ensuring safety from potential overheating.