I made this with care, but I'm an amateur, so please consider purchasing only if you understand (that's why I'm selling it at a low price ^^;). ( ^ω^) It has a safety buckle, so it will come undone if strong force is applied. Please use it according to your needs. I cannot be held responsible for any issues m(_ _)m Adult cat size The inner circumference can be adjusted from approximately 19-29cm, but please allow for some slight variations... ⚠️Bell can be removed. If you don't want the bell, please let me know if you want the split ring! 50 yen discount for each additional collar. Thank you! .˚⊹ ⁺‧( *´꒳`*)‧⁺ ⊹˚.