The Align 500 Skid Pipe is a component used in radio-controlled helicopters. It is a pipe that is attached to the bottom of the helicopter's landing gear, serving as a skid or runner to allow the helicopter to slide or glide along the ground during takeoff and landing. The Align 500 Skid Pipe is designed for use with 500-sized helicopters, and its size and strength make it well-suited for high-performance flying. The skid pipe is made from durable materials and is designed to withstand the demands of high-performance RC helicopters. It helps to protect the helicopter's landing gear and fuselage from damage during takeoff and landing, and also provides a smooth and stable surface for the helicopter to slide on.