Insulated calf warming box. Homemade. Works great. Insulated with a grated floor so mature and urine drain out. Adjustable milk barn heater. Poly window. 3.5’ tall by 3.5’ deep by 3’ wide. I’ve had as many as 3 calves in it at one time. Might not look like much, but will save a frozen calf fast. One saved calf pays for it. Only reason for selling is because I retired from cattle.