This castrator is best used on cattle, sheep and goats ranging in weight from 120kg to 340kg. The application of the ring is quick and efficient, by expanding the ring with an applicator and placing over scrotum. The applicator is made of stainless steel and rings open to 10cm x 7.5cm x 7.5cm. We recommend the use of the superior bands when castrating in cold weather. A silicon spray or lubricant should be used on arm to allow the tool to open/close freely. Always wear protective glasses when using banders and a tetanus toxoid injection is strongly recommended.