Suitable for Casio GST-W300/400G/B100 Watch Heart of Steel Strap Steel BraceletSpecification:NameSteel bracelet for Casio watchesMaterial: stainless steelStrap interface type: concave interfaceStrap length: 19.5cmColour: black, silver (optional)Suitable for GST series models:gst-w300g, gst-w300, gst-s300ggst-s300, gst-s210b, gst-s100ggst-s110, gst-w100g, gst-w110Package Includes:1 * Stainless steel strap (includes installation tool)Note:Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!Please allow 1-2cm measuring deviation due to manual measurement.