Thank you for viewing my items from among many others. This is a handmade accessory, a resin accessory that encases natural stones in resin. The stone is crystal. I made it with the image of a pale sea where the colors change. Leather cord size: Approximately 1m Please cut it to your desired length and tie it to use. The leather cord color can also be changed to a calm brown. If you have any requests for wrapping, keychains, or changes to the length of the leather cord or chain, I will accommodate them free of charge, so please comment (o^^o) If there are no comments, it will be as is. Also, if you wish to purchase multiple items, I will discount the shipping cost by 200 yen m(_ _)m Because it is a handmade item, there may be some distortion or air bubbles. The color may appear different depending on the angle of the photo. The strength and quality of the chain, etc., are not as high as those of commercially available products, but thank you for your understanding. No. 412