Inner snap swivel, size 4, pack of 30. Brand new, unused. Free shipping! Inner snap: Approximately twice the strength of a standard snap! Compared to standard snap swivels, it has higher strength, allowing you to use smaller sizes! Great for various "fishing scenarios." By keeping different sizes of swivels on hand, you can quickly change your rig to adapt to the ever-changing sea conditions! How about these affordable, high-quality (swivel, strength) "snap swivels" for this opportunity? Product Specifications Strength: 21kg Color: Black Please check the images for "size and weight." 〜We have a full lineup of various sizes〜 Other sizes are here ↓↓↓ #SnapSwivelIzuOkappariFishingDaichan