Material: made of gum resin， feel good Size: inner diameter 15.4 mm/0.46 inch， three plastic adapters with no threads fits to different size of shifter， tools included Easy DIY installation，conveniently replace existing gear shift knob Independent development and production， well-made，durable，sexy， cool and awesome， take photos personally， products as pictured Note:Dreamer Car is the our registered brand，this product is not allowed without Dreamer Car About the brand: *Dreamer Car is our registered brand， we focus on the design and manufacture of automobile accessories. *We make the car additional facilities with various devices， tools and DIY accessories. * We are the dreamers， and we have a dream:dressing up your car， make it stylish and fascinating， enjoy your happy ride. your dream car is our dream car. *Your satisfaction is our pursuit all the time. About the products: We design these shift knobs， manufacture them， test the quality， and take photos personally until all of the procedures meet our standards and requirements，then we sell them on amazon.Product quality are completely under our control. Our shift knobs is professional for racing ， and ensure to drive safety and stability. Refresh your driving room more creative，personality and fashionable. To buy it or not? Wish your wise choice succeed your special ride. Please note: Dreamer Car is our registered brand， we never authorize other sellers to sell our products. Select the Dreamer Car instead of others who list here not identical product by lowering prices only a little to take advantage of the reputation built by Dreamer Car.