The yale anti snap as platinum series euro profile cylinders provide the maximum security against known cylinder attack methods the cylinders are independently tested to bsi to be awarded the british kitemarked ts007 2012 3 star accreditation the as platinum series cylinders have a snap off front section which if attacked will sacrificially come away to give an intruder less of the cylinder to attack the hardened reinforced bar is designed not to snap but to flex in a way that will defeat the va