Columbia TM brand bellows and convoluted rubber dust boots are versatile seals used in a wide range of applications to seal dust and other environmental elements in applications with a stroke or designed range of motion. Rubber bellows and convoluted dust boots can be custom designed for the application and are available in a range of rubber materials including EPDM, TPE and Silicone. Read more: Bellows, Rubber Bellows, Rubber Bellow, Rubber Dust Boots, Rubber Convoluted Boots http:www.columbiaerd.combellows_convolutedboots.html#ixzz4nGXvH7u6 Columbia Engineered Rubber, Inc