K-FLEX (Kerr) #08 21 mm Grey Pk/6 #15290 K-FLEX (Kerr) #10 21 mm Purple Pk/6 #15294 K-FLEX (Kerr) #15 21 mm White Pk/6 #15298 K-FLEX (Kerr) #20 21 mm Yellow Pk/6 #15302 K-FLEX (Kerr) #25 21 mm Red Pk/6 #15306 K-FLEX (Kerr) #30 21 mm Blue Pk/6 #15310 K-FLEX (Kerr) #35 21 mm Green Pk/6 #15314 K-FLEX (Kerr) #40 21 mm Black Pk/6 #15318