9 in elastrator pliers. The elastrator opens or stretches a rubber castration band. A latch keeps the handles in place. Specifications: weight 125 g; length 21 cm; width 10.30 cm; materials: steel and plastic. For use, the scrotum is passed through the band and the band is released around the neck of the scrotum. Pressure from the band stops blood flow, causing the tissue to dry and fall off. This method is commonly used on young animals from 0 to 3 months of age and typically completes castration within two to three weeks.