This left-hand (LH) door glass assembly is a brand new, direct factory replacement for NB Miata. It comes with rollers and other required hardware, ensuring a straightforward and hassle-free installation process. Designed to match the original specifications of your Miata, this assembly brings back smooth operation and the new car feel. Whether undertaking a full restoration or simply replacing a damaged glass or worn-out component, this door glass assembly offers the quality, reliability, and aesthetic appeal that Miata owners demand.