Caps material: Aluminum, Plastic; Suitable for: 20mm Glass Vial; Inside diameter: 20mm; Outer diameter: 22mm; High: 8.5mm Advantage:The cover is smooth and burr-free after opening, and the cotton will not get caught . Aluminum plastic caps are suitable for oral liquid bottles, original solution bottles, essential oil bottles, freeze dried bottles, etc. Instruction : The flip off seal can withstand high temperatures. This cover is fully tear-off, and when you tear off its plastic cover, the aluminum cover becomes unusable. NOTE: Our store has flip off caps of different styles, sizes and colors to choose from. Aluminum plastic caps are suitable for oral liquid bottles, original solution bottles, essential oil bottles, freeze dried bottles, etc.

Specification:
Caps material: Aluminum, Plastic
Suitable for: 20mm Glass Vial
Inside diameter: 20mm
Outer diameter: 22mm
High: 8.5mm
Package list: 100pcs 20mm Flip Off Caps

Advantage:
The cover is smooth and burr-free after opening, and the cotton will not get caught .

Instruction :
The flip off seal can withstand high temperatures. This cover is fully tear-off, and when you tear off its plastic cover, the aluminum cover becomes unusable.

NOTE: Our store has flip off caps of different styles, sizes and colors to choose from.