240pcs HNBR Oring Seal Set 6.07*1.78*40pcs; 8.8*1.9*40pcs; 10.6*2.4*30pcs; 10.9*1.9*30pcs; 13.7*1.9*30pcs; 15*1.8*30pcs; 13.8*2.5*20pcs; 17.3*2.5*20pcs;