Protaper Hanger J-Unit 680 Team Polish Rise 1

The hanger ProTaper J-Unit 680 Rise 1 Team Polish was first developed by acquiring anthropometric data from NASA, determining the average hand size of a child aged 6 to 10. These data were used to determine an ideal handle diameter of around 22 mm, and then to determine the appropriate hanger diameter (15.6 mm). The hanger ProTaper J-Unit 680 Rise 1 Team Polish is therefore specially designed for children up to around 10 years of age. This hanger ProTaper is to be used only with ProTaper J-Unit handles, sold separately.