Durability and : our twist lock fasteners are made from quality metal giving them durability and the ability to withstand the harshest marine environments; ensuring that they remain sturdy and rust for a longer period of time. Complete Package: comes complete with 40 sets of marine grade twist lock fasteners; The provided tools make sure your fasteners are securely installed, providing you with the peace of mind that your canvas remain in place. Secure and Tight Lock: our canvas twist lock fasteners are designed to provide a secure and tight lock; This ensures that your fasteners remain in place without accidentals loosening, thereby protecting your marine canvas snaps and fasteners. Easy Installation: our turn button twist lock fasteners come with washers included in the package; The inclusion of these items makes the installation process straightforward; Known also as fastener and curtain eyelet fastener, this is the nice solution for your fastening needs. Wide Range in Application: apart from securing canvas eyelets, these versatile canvas fasteners can be applied for tarp grommet fasteners and twist screw directional fastener applications; Their versatile nature makes them a valuable addition to any toolkit. Colour:Silver Material:Zinc Alloy Package Contents: 40 * Twist Lock Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.