The Maver Quick Lock MV-R Double Braced Umbrella Arm is engineered to provide stable and robust support for fishing umbrellas, particularly in challenging weather conditions. Its double-braced construction enhances durability and resistance against the elements, aiming to keep your brolly secure. This umbrella arm features a QUICK LOCK fitting system, designed for broad compatibility across various leg dimensions. It is specifically compatible with seatbox legs with diameters of 25mm, 30mm, and 36mm. The Quick Lock system is versatile enough to fit both round and square seatbox legs, ensuring a secure attachment for most setups. For added stability and to prevent unwanted movement, the arm incorporates a double screw-lock mechanism, helping to eliminate potential pivot points and firmly position your umbrella. The clever double leg fitting further contributes to the overall support.