This stainless steel wheel from Schmitt not only provides smooth, sleek, and shiny lines for a classic look and comfortable driving experience, it is guaranteed to remain durable. The 316 cast stainless steel wheel with control knob features a standard 3/4" tapered shaft. Center nut sold separately. 13.5" diameter. Remains durable for long-lasting use Standard 3/4" tapered shaft | Vision 13.5" Steering Wheel With Knob