This product is a light bulb converter, which is made of durable aluminum material, with good texture, safe and practical. Easy to install and use, it can be easily applied to your light bulb. It is a very practical accessory that will meet your needs well. Features -Material: aluminum - This socket adapter can be used with specific light socket of light bulbs, it has a good fit and can be perfectly compatible. - Reasonable structure and high thread matching, which can well meet your conversion needs. - Safe to use, easy to install, convenient and practical, allowing you to use lamps better and more safely. - workmanship, reasonable structure, professional and practical, can bring you convenience. - It is simple , but very practical in use, which brings great convenience to you. Package list: 15 x light bulb adapters