GruntvillE.com has posted a PrimoFlex Tubing review
PrimoFlex and is a silicon-base tubing which means it has all the same qualities, but is much softer and therefore more flexible. In addition, PrimoFlex tubing is available in 3 UV reactive colors. Clear, which glows a slight purple in UV light, green, and blue. The green and blue are opaque so that they retain their color under regular light, which means no more need for dyes.Read more