We used a 4mm diameter domestic round leather cord. This is a thick choker that suits large tops. (The outer diameter of the metal fittings is approximately 5mm.) It is also recommended to wear it as is for a simple look. The basic specifications are: Leather color: Natural Metal fitting color: Gold Metal fitting type: Large plate can Length: 45cm The above are the specifications, but changes are possible upon request. If you wish to make changes, please see below and let us know after purchase. If we do not hear from you, we will create it with the above content. ・Choose from black, dark brown, natural, and brown leather cords, and silver, gold, or antique metal fitting colors. (Black is not available) All metal fitting colors will be the color you choose. Please understand that the color of the leather cord may appear different depending on the arrival time and the environment in which you view it. ・Choose from an adjuster or a large plate can for the metal fitting type. The adjuster type allows for size adjustment of about 5cm. ・We will make the length to your desired length. (Within 50cm) If you wish for a length of 51cm or more, please let us know in the comment section. We will change the price. ※ Natural is natural tanned leather that has not been dyed. Also, the color shade varies depending on the arrival time. We also have other types with different leather thicknesses for sale. If you wish to add length or purchase multiple items, please comment before purchasing. We do not offer discounts. If you have any questions, please feel free to contact us. Material: Genuine leather