Nintendo Switch Joy-Con flex cable, left side, x3 sets, repair parts, compatible product. If you experience issues such as buttons not working or the LED lamp not lighting up, it's often due to a break in this cable, and replacing it can often resolve the problem. Please refrain from purchasing if you have a new or poor rating. We apologize, but we often encounter issues with such buyers. To prevent product substitution, we do not accept returns or cancellations after shipping. Please purchase this product only if you have sufficient knowledge of repair parts.