Zilla Heat Mat Terrarium HeaterZilla Heat Mats provide optimal heat for tropical and desert reptiles, amphibians and arachnids. An external heat source is essential to help cold blooded reptiles thermo regulate and maintain a healthy metabolism, appetite and daily activity. Helps reptiles thermo regulate for daily activity, appetite and metabolism Easy to use adhesive mounting for optimal heat transfer Energy efficient external heat source Cold blooded reptiles rely on heat