Echo 20H0PS3872 20" Double Guard 91 Guide Bar, which is a replacement chainsaw guide bar. It is designed for use with Echo chainsaws and measures 20 inches in length. Here are some details about the guide bar: Compatibility: It is compa Design: The bar has a slim, symmetrical contour for lightweight maneuverability. Features: It has a 3/8" pitch and .050 gauge. Performance: It is designed to provide efficient cutting and durability. The guide bar is a genuine Echo product, ensuring a reliable and high-quality replacement for various Echo chainsaw models. It's constructed to enhance cutting precision and efficiency. AND Echo 24" chainsaw guide bar with the model number 24D0PS3881. This bar is designed for heavy-duty use and is compatible with several Echo chainsaw models, including the CS-590, CS-620P, CS-680, and CS-800P. It is a solid, slim line bar with a replaceable sprocket nose, which helps to extend its life. The bar has 81 drive links and is made with chrome moly-steel for superior strength. It is suitable for professional loggers and tree services. The bar is measured from the front of the saw to the tip of the bar.