This product is a patented product developed by our company, the product name is Headrest Lifter/SH1001A. The nut cover link is material consists of iron, the appearance is exquisite and fashionable, durable is superior material, the product colour is good, smooth surface, good texture, not easy to rust. Humanized design, gorgeous visual and decorative effect The plastic sleeve is made of custom plastic material, the plastic is Shenhui own research and development ingredients, durable, eliminate the noise, lift smoothly. The colour is silver white, it is a combination of welding and splicing, it works on the sofa headrest, it is an internal part of the sofa headrest, there is a gear to adjust the height of the headrest, its appearance and comfort can bring you a good experience. Strength factory support customization. You are welcome to contact our customer service. Our company's corporate culture includes the spirit of innovation, our team keeps up with the times, constantly develops new products and has a large number of patented products, plus we have a wealth of experience in custom cooperation, so we are confident to provide custom services to the satisfaction of our customers.We have qualified engineers and experienced designers to support the processing of a range of customized styles.Can also support a variety of styles of processing customization, quality specifications are complete and trustworthy. Saving money. We can provide the highest caliber goods at the most competitive costs because we are a manufacturer. You can rely on our after-sales care since we value enduring relationships and have a team dedicated to evaluating new products. You can save money by working with us on production, selection time, after-sales service, and other expenses.