AmazonMassi air chamber. Dimensions: 12 x 1.75 / 2.125 35 mm valve. Premium natural butyl rubber, made with high quality rubber coating, extremely tear-resistant, scratch resistant and durable.
Massi air chamber. Dimensions: 12 x 1.75 / 2.125 35 mm valve. Premium natural butyl rubber, made with high quality rubber coating, extremely tear-resistant, scratch resistant and durable.