New Silicone Semi-Truck Gray Steering Wheel Cover with Negative Ion Fits 16"17"18"19" Steering Fits most standard Semi Trucks, Buses, Rv from 15.5" extends up to 19" 100% Silicone, Non-toxic, Allergy Free, Odorless! Eco-Friendly! Latex Free, BPA Free Super heavy duty, durable, and long lasting life! The first and only Negative Ion cover - Infused with Ion Technology! Easy to clean and Washable, Easy installation, soft and comfort driving with maximum grip!