Vials and Closures. 1ml Shell Vial, 40*8.2mm Clear Glass, 8mm PE plug, Transparent (without insertion barrier) (100/PK) (National Scientific), 8ml shell vial. 100/200ul Micro Insert 29X5.7mm, Clear Glass,1st Hydrol Class,with Assembled Plastic Spring. 100/200ul Micro Insert 29X5.7mm, Clear Glass,1st Hydrol Class,with Assembled Plastic Spring.