Description This product is a PCB tube socket, mainly made of metal and ceramic materials. It has a reasonable design and durable quality. It is a great audio accessory. Made with excellent craftsmanship, the new ceramic gold-plated electronic tube holder is safe to use and will bring you a better experience. This is an excellent accessory that will bring you more convenience. Features -Color:Assorted Color -Material: Ceramic, Metal -Size: About2.20X2.20X1.70cm/0.86X0.86X0.67inch -It is made of ceramic and metal materials, safe and durable, with excellent texture. -Reasonable design makes it easy to use and can provide you with better sound. -The ceramic gold-plated tube holder is safer and more convenient to use. -The 9-pin tube socket is suitable for tubes of various specifications. -It is made with excellent craftsmanship, compact and exquisite, professional and practical.Package list: 4 x 9-pin electric tube base