Suitable Neck Circumference             Applicable Size (Reference)
10-18 cm                                                 Suitable for kittens weighing up to 1 kg
13-22 cm                                                 Suitable for cats weighing up to 2 kg
16-29 cm                                                 Suitable for cats weighing approximately 2-4.5 kg
19-36 cm                                                 Suitable for cats weighing approximately 4.5-6.5 kg