Description: Durable Material: This regulator is made of aluminum alloy which is very durable. Three Colors: This adjuster is available in three colors, so you can choose the one you like. Adjustable: The angle of this pusher is fully adjustable which you can adjust it as your need. Unique Design: Viewing windows on both sides of the frame are used to verify line of sight alignment. Easy to Use: The pusher tool holder can be screwed or clamped onto a bench or clipped into a vice.