The Pro Flex Stabilizers have been in the Alpine line for several years now and still continue to gain popularity. They have proven themselves time and time again to be one of the most effective stabilizers for reducing recoil and vibrations. The Pro Flex is an economical stabilizer with a flexible, hollow rubber body that is very effective. It is available in black with a mass weight of 7 ounces. If you want an awesome stabilizer that really works, look no further.