We will tailor replacement sleeves for your juban (undershirt) to your desired dimensions. Made from koma-ro (a type of silk crepe) fabric. How about sleeves in colors other than white? The price is for standard kimono dimensions, with a sleeve length of 49cm (1 shaku 3 sun in the traditional Japanese unit of measurement). If you desire a sleeve length longer than 5cm, please consult with us as the price may vary depending on the amount of fabric needed and the length. Please attach them to the sleeves of your existing hanjuban (half undershirt) or kimono. They can also be attached to the usotsuki hanjuban (false half undershirt) currently on sale. If you purchase a hanjuban and replacement sleeves together, we can attach the replacement sleeves (using temporary stitching) if you wish. We often receive requests from those using Kiraku and other juban, so we offer free Velcro attachment. After purchase, please inform us of your desired kimono sleeve length, sleeve width, and any preferences for Velcro, etc. Please feel free to comment with any requests or questions you may have.