For Audemars Piguet Royal Oak 15500/15400 Silver Butterfly Clasp Strap 26MM Features: 1. Viton material provides durability against accidental drops, bumps, and impacts; easy to install. 2. Comfortable wearing experience with a soft texture and excellent fit. 3. Adjustable design fits most wrist sizes and can be customized for individual comfort. 4. Compatible with AP Offshore Royal Oak models 15500, 15400, and 26331. Specification: Material: Viton Weight: approx. 30g Length: 125+75mm Thickness: approx. 3mm Size: 26mm Clasp: butterfly silver buckle Packaging Included: 1 x Watch Strap Note: 1. Due to manual measurement, please allow 1-3mm error. Ensure you are comfortable with this before ordering. 2. Please allow 1-3 gram weight variation. Ensure you are comfortable with this before ordering. 3. Due to differences in lighting and monitor settings, the actual color may vary slightly from the images. Ensure you are comfortable with this before ordering. Thank you!