About this item

• Ensure secure airtight seals for laboratory flasks, test tubes, and condensers during laboratory processes or sample storage
• Available in multiple sizes to fit diverse laboratory apparatus; please verify dimensions pre-purchase for compatibility with standardized equipment (±1mm measurement error)
• Maintains flexibility and sealing integrity without hardening or cracking
• Note: these rubber stoppers are NOT food grade
• 1-year coverage period for your peace of mind, if received damaged, please let us know and we will solve it promptly
• ASIN: B0FHKN28S1, B0FHKPMHHL, B0FHJR1VBS, B0FHKPMCSY, B0FHJ3VGHR, B0FHKNR5YN, B0FHKJJQT1, B0FHJ3W5S5, B0FHKN6VT5, B0FHJR25VX, B0FHKM829D, B0FHKMR5RR, B0FHKNTYVB, B0FHKNF9YW, B0FHKPMFRM