Marathon''s vulcanized rubber straps look and feel great. You''ll appreciate their durability and style. This high quality strap is waterproof and looks great with both dressed up and casual attire. It features a 316L stainless steel signed buckle and installed stainless steel shoulderless spring bars. Made in Italy. NOTE: The rubber strap includes a shoulderless spring bar that is compatible with watches that have drilled lugs from the outside. If your watch does not have drilled through lugs, then replace the spring bars in the strap ends with shouldered spring bars, so they can be easily removed from lugs that are not drilled through.