Toads Pens reusable injection pens use standard 3mL replacement cartridges for quick and convenient refills. Instead of replacing the entire pen, simply install a new cartridge and continue using your reusable injection pen. For the best fit and reliable performance, choose Toads Pens 3mL Replacement Cartridges, which we designed to work with our reusable injection pens. Our replacement cartridges are easy to install, reusable, and made to provide a secure fit for consistent use. https://toadspens.com/product/pen-cartridges-3ml/
Yes! Toads Pens universal pen needles fit most reusable injection pens that accept standard screw-on pen needles. Their universal design provides reliable compatibility with many reusable pen systems.
Each needle is sterile, single-use, latex-free, and individually sealed for quality and convenience.
Available Sizes
4mm Pen Needles – A shorter option preferred by many users.
5mm Pen Needles – A versatile, all-around choice.
8mm Pen Needles – A longer option for those who prefer additional needle length. https://toadspens.com/product-category/universal-pen-needles/
The difference between 31G and 32G pen needles is the needle’s thickness (gauge). The higher the gauge number, the thinner the needle.
31G Pen Needles are slightly thicker and may offer a bit more rigidity during use.
32G pen needles have a slightly thinner gauge than 31G pen needles. Many users prefer 32G pen needles for their finer design, while both 31G and 32G universal pen needles deliver a comfortable injection experience. Most users won’t notice a significant difference in performance, so the choice often comes down to personal preference.
It’s also important to remember that gauge and length are not the same thing. The gauge (31G or 32G) refers to the needle’s thickness, while the length (such as 4mm, 5mm, or 8mm) refers to how long the needle is.
Toads Pens offers universal pen needles in multiple gauge and length combinations, making it easy to find the option that best fits your reusable injection pen and your personal preference. https://toadspens.com/product-category/universal-pen-needles/
Reusable injection pens accept compatible 3mL replacement cartridges for quick, convenient refills and long-term use. They offer a convenient, reusable alternative to disposable injection devices.
Yes. Our cartridges are sterilized using a low-temperature ozone sterilization process.
Ozone sterilization does not produce the same color change as steam or ethylene oxide sterilization indicators.
Orders are typically processed within 1–2 business days.
Yes. Tracking information is emailed once your order ships.
No! Everything is there. If you twisted the cap off, put it back and simply pull the cap off, the cartridge holder is there. You only twist that off when you are replacing your cartridge.