Safety features include:A 'Stop' prevents the drawbar from dropping below 230 mm.A 'Lock' holds drawbar vertically.Heavy king-pins & spring-loaded retaining ball in the rear coupling pin ensures safe towing & eliminates self-releasing. CE Marked and Plated Towing eye diameter 50 mm Ball bearing turntable transmits thrusts & traction forces over a large surface & does not have any fraction Link turntable steering is available for all models - please call for details Please Note: When purchasing product code HT710A as an item on its own it is subject to an additional carriage charge - please call for details.