HEN/CHICKEN AI GLASS TIPS/ RODS. Artificial insemination glass tubes / tips or glass rods are used to inject semen in hen. The length of each tip is 70mm with an outer dia of 3.5mm and inner dia of 3mm. AI glass tubes / tips are made of borosilicate soda glass, these glass tubes / tips are majorly used in cage system hatcheries for artificial insemination in hen. The artificial insemination glass tubes / tips or glass rods are heated from both ends for smoothening and eliminating the edges. These Artificial insemination glass tubes are also known as, artificial insemination glass tips or glass rods.