Laboratory Circle Sealing Sticker Self-adhesive Sealing Labels, 6 Colors Circular Leak-Proof Sticker for 13/20mm Aluminium Plastic Caps

6 vivid colors circle leak-proof sticker , easy differentiation between different liquids, for 13mm aluminum plastic cover

6 vivid colors circle leak-proof sticker , easy differentiation between different liquids, for 20mm aluminum plastic cover

 Designed for laboratory glass flip-top caps vials and to ensure still airtight closure after use the rubber stopper , preventing contamination and leakage

Burr-off cap sealing stickers with pre-cut edges and a smooth adhesive layer enable quick,easy to use

The central area of the sticker contains no adhesive, removes cleanly without damaging vial surfaces or leaving sticky residues

 Perfect for sealing vials, chemical reagents, and biological in research or industrial settings,reducing waste

These rounded open stickers create a secure, effectively prevent leakage after needle punctures, safeguarding contents from air exposure, moisture, and contaminants