Check the listing for details. Aircraft Magneto to Engine Timing Indicator Cap Spinner Timing Cap. Condition: New. Listed at 44.99 USD. This Magneto Timing cap utilizes 6 equally spaced thick tabs to use for mounting on the airplane propeller via rubber bands. It fits any fixed-pitch or constant-speed propeller with various blade counts. Magnetos may be reliably, precisely, and efficiently set with this inexpensive Tool. No Digital Inclinometer is included - The slot for the Digital Inclinometer measures 51mm X 51mm wide x 34mm tall. It was designed to hold the Model Johnson 1886-0100 inclinometer, which is NOT included. If you have a different size inclinometer, please send us a message and we can modify the size of the slot opening to fit your digital inclinometer. This item is 100% Designed and Made In The USA. Your purchase directly impacts small family business. This aircraft magneto to engine timing indicator cap spinner timing cap is a must-have for any piston aircraft owner. Made in the United States, it is a high-quality part that is compatible with all piston aircraft makes. The cap is designed to fit securely and accurately indicate the engine timing. The products durability and reliability speak for themselves. It is perfect for those who are looking for a replacement or an upgrade for their aircraft's timing indicator. This item is a great addition to any aviation parts and accessories collection and is a true essential for any aircraft owner.