1.Good quality/competitive price 2.Timely delivery and sincere service 3.Different size/design for ... *18mm, 28*28mm, 29.1*44mm, 29.1*50mm, 29.2*60mm, 30*22mm, 30*35mm, 30*48mm, 30*50mm, 30 ... *23mm, We supply a variety of top-quality caps with the most competitive price, such as plastic caps, aluminum caps, aluminum-plastic caps ...