1. Kinds of items suitable for customer to choose, PP or glass. 2. PP vial with Graduations, easy for lab use and reading accuracy. 3. Suitable with 9mm open top cap with PTFE septa. 4. Provide kit packing for customer, vials+cap+septa,convenient. 2. Related Services. 1) Packing,in PP-Trays with plastic film and cover plate,neutral cartons outside.