The Impact Grip Kit is a great set of core gripware for single shooters or small production crews. The 40" Grip Arm is a great extension arm for extra lift or reach. It can hold a small light head, a flag, gobo, or reflector. The 2.5" Grip Head is designed to hold scrims, flags, floppies, cutters, etc. or mount on Century stands or butterfly frames. The Impact Super Clamp will securely mount to pipe or other items that are 1.2 - 2 1/8" in diameter. It accepts the included Snap-in Pin which has a 5/8" diameter, making it perfect for standard "baby" receiver lights and accessories.