Description: Use a polymer blended, isotropic neodymium/iron/boron magnet to provide accurate control of the pintle and airflow ensuring accurate operation Produce the highest output torques and shielded ball bearing in the motor resists the environmental contaminates Delivers a force greater than actual load for extra durability and peak performance Manufactured with the highest grade materials for prolonged life and superior performance Complete quality control is maintained through the manufacturing process from componentry to finished product Specification: Material: Aluminum Alloy Size Chart: Size: Approx. 41x50mm/1.61x1.97inch Small Hole Diameter: 4.6mm Package Includes: 1 Piece Ignition Control Module