These germanium beads have a purity of 99.999% or higher and have been certified 100% by a public inspection organization in Japan. The effect lasts even with repeated use, and they can be used permanently. How to Use: 1. Apply directly to the body Fix with commercially available plaster sheets or medical tape and apply to areas of the body with stiffness or pain. 2. Use in handmade bracelets and necklaces Fix to necklaces and bracelets with commercially available accessory adhesive. Product Name: Ge100% Germanium 5 Beads Material: Germanium (100% purity) Size: Diameter 4mm x Height 2mm Country of Origin: China Important Notes: ※The plaster sheet in the image is an example, and this product listing is for the germanium beads only. ※Please note that for the sake of the environment and cost reduction, the product will be delivered in simple packaging (delivery bag or recycled cardboard, etc.). ※Multiple purchases are possible. Please inquire via comments. ※Discounts are not offered. Thank you for your understanding. ☆Instant purchase is OK without comments!