This feeder features a bottom chain to stabilize the box and a middle divider

Highly absorbent material serves as a therapeutic wrap and a shipping wrap

Bright color provides high visibility

but there are a couple key differences to note when comparing it to the Small Animal Heated Pad:

Watts 175 Pressure Temperature Valve Nutrena This feeder features a bottomThis 3 4 inch temperature and pressure relief valve is designed to provide automatic temperature and pressure protection to hot water supply tanks and hot water heaters up to 105,000 BTU per hour. This two in one relief valve provides a proven and cost effective means to protect against excessive temperature and pressure emergency conditions. It features a forged body with NPT male inlet and NPT female outlet connections, test lever, and extension