now we stand in the perspective of the factory to explain for you. The crude oil which affects the unit price of the product most is the reason of the quantity of the product. It takes a lot of time for the factory to adjust colors, draw and open abrasives, and the dispensing machine. The cost of labor and time is one of the reasons that affect the unit price most. Large quantity saves a lot of labor costs, so the price is very cheap. Customized silicone bracelets custom cheap can reduce the unit price by increasing the quantity. The same product can be packed differently. Sometimes the cost of packaging even exceeds the cost of the silicone bracelet itself. It is due to the different needs of customers. Some are sold in stores, and some are used as promotions. Good packaging can drive the sales of the whole product, which is also the different needs of the product, different use goals lead to different packaging, prices will naturally be different. silicone-bracelets-custom-cheap-canadasilicone-bracelet-maker-machine celet. The glow powder is eco as well as the silicone material bracelet. When absorbs enough strong light before being put in the dark, it glows blue, green or red depending on the style of the glow power. The glow will last for hours and gradually weaken. But when reabsorbs the light , it glows again like original shows. It is the most favorable item for the night event. It looks so good in the dark reflecting the logo custom. Hope this can help you for the glow in dark silicone bracelets. A uv silicone bracelet can transfer its color darker under sunshine when absorbing uv light. It is not only with good looking appearance but also indicating the strength of the uv index. So some uv silicone bracelets made as the indicatiocustom rubber keychainsn with the rcustom rubber keychainsuler of levels of index. Wearing on the wrist to avoid long time staying under strong uv. So what makes it uv transfer ? The answer is the UV phosphor which usd uv energy to open the sensitive molecular bond and make it jump from low energy to high energy level There will be a change from visible light to visible light, resulting in the changing color from light to dark. It become a uv silicone bracelet when the UV phosphor is put into the silicone mass and produce it a band.