The fastener you need to make an accessory is a set that is set.
Use this link to the end of the necklace or bracelet. The set contents > kanikan No. 1, 1, Ajaster No. 2, C Kan 0.6 x 3, 4 mm 2, Kashime 1.2mm 2 * The size of the Kashime is the size of the corresponding code.