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 ^^;). 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. m(_ _)m This is for adult cat size. The inner circumference is adjustable from approximately 19-28cm, but please allow for some slight variations... Bells can be removed. If you don't want a bell, please let me know if you want the ring attached! m(_ _)m I will discount 50 yen for each additional collar. Thank you. .˚⊹ ⁺‧( *´꒳`*)‧⁺ ⊹˚.