Please understand that this is a used item and is sold as-is, with no claims or returns. Mastery Bridge / M1 Replacement Bridge (USA inch standard) Compatible with Fender Jazzmaster, Jaguar, Mustang, etc.! A reliable Made in USA bridge. The highly-rated Mastery Bridge M1 model. This is a replacement bridge that can be installed on Fender USA Jazzmaster, Jaguar, Mustang, and other models. It is compatible with USA standard .310 inch inner diameter thimbles, from vintage to current models, and can be installed directly without body modification. Highly recommended for players who want to improve tuning stability when using the vibrato and enhance the core sound. Its precise design and smooth playability have earned it high trust in professional settings. Included accessories: Box, bag, hex wrench * Handling guitar parts requires appropriate skill and knowledge. Please consider this item only if you are able to handle it at your own risk.