For Casio PRW-3500/2500 Mountaineering Rubber Strap Waterproof and Sweatproof Features: 1.Soft rubber, soft and comfortable, fit your wrist. 2.Steel buckle, simple and easy to operate, safe to wear. 3. Specialized interface, accurate fit to the original dial. 4. Waterproof and sweatproof, softer and more comfortable. Specification: Base Material: Rubber Buckle: Stainless Steel Colour: Black, Orange Strap Length: 70+ 132mm Thickness of strap: about 3mm Interface type: special interface Applicable models:For Casio PRG-200,PRG-260,PRG-270,PRG- 500,PRG-250T,PRW-3500,PRW-5000,PRW-2500T,PRW-2000,PRW-3510 series Package Included: 1*Strap (other accessories not included) Note: 1. Please allow 1-3 mm error due to manual measurement. Please make sure you don't mind before ordering. 2. Please allow 1-3g weight error. Please make sure you don't mind before ordering. 3. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you!