Thaw Unit is used to thaw semen straws for artificial insemination. Warm water is inserted into the unit and a thaw card water tester is included for convenience. Thaw Unit is made of ABS non-corrosive plastic with a nylon lid and thermoplastic rubber seal. It fits neatly into the CT-100 Plastic Carrying Case available separately. Manual Thaw Unit weighs 2.5 lbs.