1000pcs/lot 20mm Full Aluminum Filp Off Cap Cover Glass vial bottle top sealed

20mm glass vials Full aluminum caps

Material:Full aluminum

Outer Diameter:20.5mm, inner diameter: 20mm, height: 8mm

Type: four types to be option,the cap with an arrow is easy tearing, others need to prepare a decapper tool to open.

Color: Silver

Used for: 20mm Vial