Preferred material: Made of high purity S925 silver, with corrosion-resistant, rust-resistant and durable decorative surface. It has a fine silver color and is hard to discolor. It is highly elastic, sturdy and hard to deform. How to use: Chain, bead rope, necklace, bracelet, anklelet, mallet, etc. You can combine them freely to suit your preference. You can also play with phenomena you have created yourself or DIY. DIY: There are many ways to make and combine, and you can create elaborate handmade pieces with your own meaning, which can be given to birthdays, Christmases, celebrations, Valentine's Day, Mother's Day, parties, weddings, picnics, travels and other occasions. Oxidation: Silver 925 is easy to oxidize and turn black, so rubbing with toothpaste will remove the black parts. (Note) Do not mix toothpaste with water. (Please use toothpaste only.