Improvacuter® Blood Collection System Multi-Sample Needle 22G*1 1/2 0.7*38 Mm, Multi-Sample Needle 23G*1 1/2 0.6*38 Mm, Blood Collection Set 22G×3/4ʺ×12ʺ 0.7×19 Mm×300 Mm, Blood Collection Set 23G×3/4ʺ×12ʺ 0.6×19Mm×300Mm