Made of rubber, these castration rings durability and consistent functionality even in harsh livestock environments; precision engineering of the 50-piece set can be maintained for long-term use, making it suitable for cattle, sheep and goats This ring has an inner diameter of 0.39 inches/1 cm and an outer diameter of 0.79 inches/2 cm, suitable for newborns to 350 pounds of animals; the design allows for easy passage of larger objects, ensuring safe application of castration during livestock operations Intuitive design, easy to use, just open, place and release; simple mechanisms reduce stress on farmers and animals, allowing them to focus on effective animal management Designed as a humanized castration solution that provides gentle and safe closure from newborn calf to large animals; this method of discomfort and recovery makes them an option for livestock management Provides compatibility, these castration belts work seamlessly with extra-large extension pincers; suitable for a variety of tasks in cattle, cattle, sheep and goat management, ensuring adequate supply meets a wide range of agricultural needs. Color: As Shown Material: Rubber Package Contents: 50 pcs * castration bands Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.