This cut - to - size FKM rubber watch band is great for Tudor Black Bay 58 owners who want to add a touch of style and comfort to their watches. Whether you're at a business meeting, a casual outing, or a sports event, this band is suitable. It's made of durable FKM rubber, which is resistant to heat, chemicals, and UV damage. The cut - to - size feature allows you to adjust it according to your wrist size for a perfect fit. And with the quick - release spring bars, you can easily change the strap whenever you want.