Kamer is a recognised European brand. These forged steel emasculatorsare of very good quality but at reasonable prices. Use emasculator tocrush one spermatic cord at a time, making two crushes on each, about1-2cm apart, for 5 minutes each crush. (Do not crush both cords at thesame time, as this may be ineffective, and may damage the emasculator.)23cm: For lambs 30cm and 34cm: For large sheep 40cm: For calves andhorses´NB: These tools are for use only by experienced herdsmen, orunder supervision of a veterinarian.