The range of door loops from CDVI offer a safe and secure method of transfering cables from a fixed point, such as door frame onto the door leaf. All models have a metal loop for better protection, and all have a minimum internal diameter of 7mm which is sufficient to handle the most common cables used in door locking/control. The GF45 is the traditional door loop, square aluminium ends with 4 fixing holes per end. This model is still the most widely used in the market.