Due to State and Federal Law, we sell Syringes and Needles only to the Medical Facilities. Heavy-duty compressor for more efficient cooling * Specially designed interior chilling coils cool packs faster * 3" (8 cm) swivel-type rubber casters for silent, friction-free movement of mobile units * UL listed (120 Volt) * Complete with 6 standard size ColPacs and 6 Half size ColPacs * Temperature Range -12 Degrees to -6 Degrees Celsius. *