New 1.5ml/1.8ml/3ml/4ml Cassette Bottle for Insulin Injection Pen Individual Packaging,Universal Vials 10pcs/20pcs/50pcs/100pcs

May product update: The cartridge bottle fittings have been improved; the product will now function correctly even if the rubber stopper is positioned incorrectly（video show）

Quality Material: Our Cassette Bottles are crafted from premium glass, ensuring durability and safety for storing insulin.

Ergonomic Design: Each Cassette Bottle features an ergonomic design that allows for easy handling and straightforward use, making it ideal for daily insulin administration.

Sterile Packaging: Each Cassette Bottle is individually packaged, providing you with a hygienic solution for insulin storage and safeguarding against contamination.

Compatibility Assurance: Please verify that this Cassette Bottle is compatible with your insulin pen, ensuring optimal performance and ease of use.