Before you buy: In order to avoid returns, please note the dimensions and all other information again! Freewheel function (only for profile cylinders with emergency and danger functions) IMPORTANT: With our cylinders, the key must always be inserted horizontally into the key slot and pulled out again horizontally. Emergency + danger function: Can be locked on both sides, even if a key is inserted. Freewheel function: Causes the locking cam to rotate freely through 360° when the keys are removed from both sides. (The freewheel function is only available on our profile cylinders with emergency and danger functions) If a key is inserted into the key channel of the cylinder, the spring-loaded clutch in the cam engages. This means that the cylinder can then be closed in the usual way with the