Advantages: Nice beads for jewelry making. This is a collection of 5 sizes of beads, which saves a lot of expenses such as packaging, transportation, storage, etc. Therefore, the price of this is very cost-effective, you can save some. If there are comments that this transparent bead is like plastic or acrylic, don't worry, they are glass beads, transparent, shiny, you will get the same beads as the picture, we use this raw material in most of our factories. You can smash a bead or even use a fire to verify that it is glass. We have a suggestion, the brightness of crystal glass will be reduced by dust during the entire manufacturing, transportation and storage process, after you clean it with a soft rag or water, they will shine even more.<p> Regarding the fading problem of AB color:<br> These beads are white transparent, the factory uses electroplating technology to plate the color of the Half-AB onto the beads, and the color of these plating will gradually fade during the subsequent use. The reason is that it is oxidized or rubbed off. Depending on the method of use, the environment used, and the time of use, the fading of each bead is different. This is the common characteristic of all plating colors and AB colors. Swarovski beads will be much better, and their expensive prices will enable a more lasting effect. We believe Half-AB color is a little more beautiful than full AB, and the color is more vivid and concentrated. However, the half-AB color will be more obvious during the later fading process. This is its advantages and disadvantages, please choose carefully. We have some suggestions for use: when you are exercising and sweating a lot, or when you are using household detergents, please do not wear them for a long time, because the AB colour will be corroded by alkaline chemicals. And if the beads are exposed to the sun for a long time, or if the beads repeatedly rub against other hard objects, the color will be accelerated fading. Thank you.