Expertly crafted in Italy for more than forty years, vanilla-scented Bonetto Cinturini rubber dive watch straps have long been trusted by renowned watchmakers for their perfect combination of durability and comfort. Made from high-quality vulcanized nitrile butadiene (NBR) rubber, these waterproof, nontoxic and nonallergenic straps are engineered to withstand seawater and UV radiation from sunlight. In addition, thanks to the repellent properties of NBR rubber (unlike silicone), you can say goodbye to lint and dust! With hundreds (and hundreds) of positive reviews, Bonetto Cinturini straps are a great choice for any watch enthusiast. Model 270 has a sleek, streamlined, untapered design with ten hidden holes that can be perforated from the underside. Material: Premium vulcanized NBR rubber (not silicone) Vulcanization is a curing process using heat and sulfur that promotes strength, suppleness and protection from abrasion Polished stainless steel buckle Sizing: Untapered Piece length 120mm / 78mm excluding buckle Total length 7-5/8" excluding buckle 3.5mm thick Includes: One free pair of strong, seamless double-flange stainless steel spring bars (Model 270 accommodates a maximum bar thickness of 1.5mm) Watch an Urban Gentry video review of the Bonetto Cinturini Model 270 rubber strap on an Omega Speedmaster automatic: