plastic flip top cap describe: 1.Specification17/ 415 2.size: 19* 21( H) mm 3.material: PP 4.c olor: any one is ok 5.accept custom order advantage: 1.high quality, the competitive price 2.Sampls can be provide free 3.many years of producing experience 4.Usage: chemical, health, medical, food and household 5.surface processing: UV/ Hot stamping/ frosting 6.Logo engraved 7.Packaging: carton package