18mm head breadth hole pitch 9mm suitable for skgen SKW456LRS SKW2002 SKW2068 suitable for bering 14539-307 14539-367 14539-166 The package is equipped with 4 small screws and tools for customers to replace by themselves Material: stainless steel Milan strap, not easy to fade, durable, the longest wrist around to 170mm-180mm Thickness of strap: 1.4mm-1.5mm If you don't know how to choose the right strap, you can bring the picture of the watch (front and back) to us and we will give you the right answer.