we are only going to get to know the date of production and shelf life ,not the process of making it ;When we went to buy a cell phone ,we are only going to get to know the function of it ,instead of understanding how mobile phones are developed .In nowadays ,the personalized silicone bands is the most popular ornament ,most people choose to order silicone bands to wear .But they only have a simple understanding of the rubber bracelets . Do you want to know more information about the silicone bands ? The first siliconcheap custom silicone wristbands free shippinge bands was born in USA in 2005 ,the color of the silicone bands is yellow with message "LⅣESTRONG",the meaning of it is resist disease, cancer, and stronger life .There are some common styles of the rubber bracelets ,such as debossed colorfilled wristband ,embossed printed wristband and so on .And there are some common sizes ,for example ,adult size (202*12*2 mm) ,youth size (180*12*2 mm) ,toddler size (150*12*2 mm) .The high quality silicone bands are environmentally friendly ,and it has good elasticity and is not easy to break .If we want to judge the quality of the silicone wristband ,the easiest way is to smell the bracelet .Silicone bands are of good quality if they don"t have a pungent odor . cheap-silicone-wristbands-for-fundraisingcheap-silicone-bracelets-canada terials and production process , so the products produced appear performance defects and practical function is reduced . Some customer are holding ready-made products for Soft-hardness comparison directly and then choose one of them . In nowadays the custom silicone bracelets is one of them. So how to choose the hardness for custom silicone bracelets . The choice of softness and hardcheap custom silicone wristbands free shippingness of silica gel will have different effects on the properties of different products . At present, the hardness of commonly used silica gel hand rings is between 40 degrees and 60 degrees and material with different hardness has certain difference . For example , the tensile rate of 40 degree materials will reach about 150% , and the tensile rate 60 degree materials can only reach about 80% . So in order to confirm the functionality of products , we have to test them . It is more difficult to produce high hardness silica gel hand rings . For the manufacturers of silica gel hand rings , the higher the hardness , the higher the defective rate of the products and the pulling force of the products will also be affected and will cause fracture phenomenon at any time . Therefore , we suggest that the hardness of the silica gel hand rings should not be too high .