250ul Insert with mandrel interior and polymer feet, 29*5.7mm; suits for ND9 Vials: I250: 250ul Micro-Insert,31*5mm,clear glass,flat bottom; suits for ND8 Vials: I300: 300ul Micro-Insert,31*6mm,clear glass,flat bottom; suits for ND9 Vials: V181: 1ml shell vials,1st hydrol glass,clear, 8mm PE-Plug,soft, without insertion 8.2*40mm: VP91