The metal oral gavages are perfect due to their sturdiness and ability to autoclave sterile. Our lab actually uses them in transcardial pefusions and they work brilliantly without damaging the heart. The even make moving the needle into the aorta easy for a perfect perfusion of the rat brain.
Really customer oriented, with of course great quality products! Highly recommend.
No discernable difference between these trays and those costing 5 times as much.