There have pictures to show you how the clasp works.the Wax wire rope rope is 41-70cm long and the Diameter of rope is 3mm ,the Stainless Steel Width:0.17 Inch 4.5mm,It's thicker than the rope. It's more fit for women .there have 7 length size you can choise. I hope you like to use this leather rope to hang down the pendant you like. The 3mm rope is more fit for men.The 1.5mm and 2mm are more fit for women ,There have 1mm rope is better with women who like thin rope.(The 1.0mm and 1.5mm ropes are relatively thin, and it is easy to break the joint when pulling hard.) Black Necklace Rope Length:41-70 cm (16-28Inches),Width:0.12 Inch 3mm, Stainless Steel Width:0.17 Inch 4.5mm Color:Black & Silver Meterial :316L Stainless steel & Wax wire rope Packing :Black Velvet bag For your reference This pic show the length of the rope Length : 7 size of the rope 41cm 45cm 50cm 55cm 60cm 65cm 70cm.(16 Inches,18 Inches,20 Inches,22 Inches, 24 Inches, 26 Inches,28 Inches) color : Black Brown Red There are four different kinds of thick rope inclued 1mm 1.5mm 2mm 3mm. you can find in my shop. The rope is made of high quality waxed thread, and the clasp is made of 316L stainless steel. It is water-resistant, dirt-resistant and firm It can be perfectly matched with all kinds of jewelry pendants This picture show how to open the clasp. This picture show how to close the clasp. Package coming with black velvet bag.