This is a genuine Casio band for vintage G-Shocks, including the first generation, Hockey, and Speed models (silver hardware). It has been treated to prevent hydrolysis and stickiness, ensuring long-lasting use. The design is rugged and cool, modeled after tank treads. *Note: This band cannot be installed on models with EL backlights. Please be aware that it is for old models with a small light bulb, secured by a screw-on back cover.* (Compatible models: DW-5000C, WW-5100C, DW-5200C, WW-5300C, DW-5400C, DW-5600C, DW-5700C, DW-5800C) Although unused, there may be initial scratches, dirt, warping, and tears or stains on the outer packaging. Please refrain from bidding if you are concerned about the condition. (The photos are used repeatedly.)