Check the listing for details. COX Reed Valve .049 Model Airplane Engine. Condition: Used. Listed at 125.00 USD. This COX Reed Valve .049 engine is in very good condition. It is listed as "used" due to storage dust, it has a few very minor scratches and a spot of corrosion on the spinner. I believe it has never been ran, however that is to be determined by the buyer. The starter spring is very flexable, and the compression is great. The piston moves freely and smoothly, and has the distinctive "click" as it go'es over compression. The glow element appears to have never seen fuel. These are my observations and i do not claim knowledge with these type engines. Please ask questions or for more pic's. No returns. Thank you for looking!