PB Swiss Tools PB 210H-6 RB Hex Key Set rainbow Includes hex key (allen wrenches) size 1.5mm to 6mm. Color-coded set with perfect dimensional accuracy for exceptionally long tool life. The right tool is always at your fingertips with quick identification by color and size. All PB Swiss Tools are 100% Swiss-made. Every PB Swiss Tools product comes with an unlimited lifetime guarantee.