<div> Silca hoses, heads and adapters for bicycle pumps.</div><div> <ul><li>Aluminum, light weight and durable</li><li>Full Synthetic Elastomer 242 Gasket with 5X the durability of traditional rubber materials</li><li>Pressure amplifying dome geometry uses air pressure to clamp valve stem</li><li>Iconic Silca Presta Head Design</li></ul> </div>