Thyle 12 Pcs 3ml Pen Cartridge Caps, 6 Colors Silicone 8mm Leak Proof Lids

Features: Quality Silicone Material: The quality silicone construction flexes with each use without cracking or losing its shape, unlike plastic alternatives that break after a few weeks. Your caps serve you through dozens of applications while maintaining the same tight seal from day one. Great Gift Idea: A craft enthusiast looking for a thoughtful present for a DIY friend will appreciate the practical value of this 12 pieces assorted color set. The vibrant rainbow colors make these cartridge caps as fun to use as they are functional. Give the gift of organization and leak free storage to someone who works with small vials, syringes, or refillable cartridges on a regular basis. Specifications: Material: silicone Color: red, orange, yellow, green, blue, purple Size: The inner diameter of the cap approximately 0.31 inches / 8 mm Package includes: 12 x Cartridge cap Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays

• Package Includes: you will receive 12 assorted color 3 ml cartridge caps in red, orange, yellow, green, blue, and purple; A busy researcher who needs to cap multiple sample vials can grab the right cap instantly without hunting through a single color batch; Whether you work in a laboratory or run a home workshop, sufficient quantity ensures you always have a spare on hand when you need it
• Secure Sealing: a DIY crafter who stores opened printer ink or reagent bottles needs a reliable seal to prevent air exposure and drying out; Each 3ml cartridge cap fits snugly over your vial opening and creates an airtight barrier that keeps the content fresh; Your valuable liquids and gels stay protected without worrying about leakage or evaporation between projects
• Suitable Size: each cap has an inner diameter of about 0.31 inch/ 8 mm, designed specifically for 3ml cartridge bottles; Who handles multiple vial types can trust this universal sizing to work across 3ml cartridges; The precise fit means you push it on once and it stays put, giving you peace of mind that your container is properly sealed every time
• Color Coded Organization: a lab assistant who juggles multiple samples at once can assign a different color to each liquid type; Whether you are distinguishing between glue, oil, ink, or medication, the 6 color caps make visual identification instant; No more reading tiny labels or mixing up similar looking bottles when you work under time pressure
• Versatile Daily Use: a hobbyist who refills printer cartridges, a gardener measuring plant nutrients, and an artist mixing acrylic paints can all benefit from having these caps on their workbench; Ideal for anyone who needs to seal small bottles between uses, whether at home or in a professional setting; The compact size fits neatly into any drawer or tool box, ready whenever a project calls for it