250ul Micro-Insert:250ul Micro-Insert,31*5mm,clear glass,flat bottom; suits for ND8 Vials: IB300: 31*6mm: 100PCS/PK: 300ul Micro-Insert,31*6mm,clear glass,flat bottom; suits for ND9 Vials shell vials 300ul glass vialsglass vials can stande Aijiren vials it had screw-thread vial snap-top vial crimp-top vials: V1A: 8.2*40mm: 100PCS/PK