5resistance level elasitc tube latex material different size,resistance,color ... *1200mm 1pc Yellow,7*10*1200mm, 1pc Green,5*9*1200mm, 1pc Red,7*11*1200mm, 1pc ... colors available, bright & attractive;5, with strong ability of stretch, latex tube can be extended 6 times based ... : heavy, midum & light tenion available, based on different tube size, thickness, suitable for chirlder, women, adult & old ...