What are silicone wristbands made of?

Silicone wristbands are made of silicone, which is a synthetic compound that does not react to heat or cold, moisture or other external factors; it is "inert" and non-toxic as well as non-allergenic. The silicone used to make wristbands is very flexible and stretchy, like natural rubber, but will not become brittle and does not break easily. It is inexpensive to produce and can be dyed any color and molded into endless shapes making it very useful for toys.