Approximately 38cm per strand, great value! This is for two bracelets. Elastic nylon thread (Operon rubber) is used. Power stones, natural stones ******Combined Purchase Discount******** No discount for purchasing one item. For combined purchases, we offer a 100 yen discount for two items. Regarding natural stones: Please understand that there may be crystal formations, crack-like patterns, and indentations. There may be a size difference of approximately ±0.5mm in the bead size. Please understand this before purchasing. We do not sell individual beads from the strands. We do not hold items. Please proceed with the purchase on the combined purchase page as soon as possible. ------------------------------------------