Four friction pads effectively suppress snaking and pitching. Safe Towing - Safety fitment indicator shows correct coupling of AKS to your towing vehicle. Reliability - Safety wear indicator provides easy monitoring of wear on the towball and all the friction pads. Built for long life and high resistance to corrosion. Easy to use- convenient one handed, single lever hitching operation. Lightweight, compact alloy construction (only 4.2kg) Integrated brackets to allow fitment of AL-KO Security Devices. For caravan and trailers 200kg- 3000kg.