Feature:<br> Type: Swivel Eye Snap Hook<br> Material: 304 Stainless Steel<br> Color: Silver<br> Size: 0#/M4, 1#/M5, 2#/M6, 3#/M7<br><br> Adopting high quality stainless steel, high hardness, damp-proof, anti-corrosion, rust resistance.<br> Delicate technology, solid design, durable and wear-proof, strong load-bearing, swiveling flexibly.<br> Gorgeous stainless steel gloss, non-toxic, non-pollution, environmental protection.<br> High quality inner spring, flexibly press. <br> 360 degree rotation, prevent ropes from knotting.<br> Easy to install, convenient to use.<br><br> Specifications:<br> Type Front Openging(mm) Revolving Ring Width(mm) Overall Length(mm) Weight(g)<br> M4 (0#) 6.64 16.1 68.2 25.7<br> M5 (1#) 12.54 20.44 89.8 50.4<br> M6 (2#) 17.6 23.6 103 76.5<br> M7 (3#) 18.6 24 115 137<br><br> Note: Manual measurement, Please allow 1-2mm error.