Ancol Silky Nylon Heart Cat Collar Ancol Silky Nylon Heart Cat Collar – Safety Buckle cat collars have a special break-away buckle designed to snap apart if the cat is in any difficulty. All Ancol cat collars have bells attached, the RSPB website states ‘that cats equipped with a bell returned 41 per cent fewer birds and 34 per cent fewer mammals than those with a plain collar.’ Warning – If using liquid flea treatments we recommend removing the collar until there is no trace of the chemical on the cat’s neck area. The chemicals from the flea treatment can react with material and the plastic on the collar, this could possibly prevent the safety clasp to open as it is designed to do. Safety buckle cat collars, special break-away buckle designed to snap apart if the cat is in any difficulty. Each collar has a bell attached. Available in 2 colours: Blue Raspberry Click here for a wide range of Ancol Cat Collars!