High-quality, steam sterile 3 ml cartridges designed for use with research peptide pens. Perfect for accurate. Each cartridge is individually sealed to ensure safety and reliability. Key Features •Pack of 5 steam sterile cartridges •Volume: 3 ml each •Individually sealed for hygiene •Easy to attach and remove •UK stock – no waiting for overseas delivery Why Buy From Us? ✅ Trusted UK seller New. A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging is applicable). If the item comes direct from a manufacturer, it may be delivered in non-retail packaging, such as a plain or unprinted box or plastic bag.