There are 50 blood collection needles in a box, and this type of needle has 23g.26g.28g. Features: 1. High quality needle tip. The three edged needle tip is smooth and sharp to reduce the discomfort of blood collection. 2. Sanitation and convenience. Disposable, hygienic and safe; Plastic shell design, light and convenient. 3. Strict sterilization. Gamma radiation sterilization.

Usage steps: 1. Install the blood collection needle into the blood collection pen, and screw off the protective cover before use. 2. After use, insert the tip of the blood sampling needle into the protective cap and place it in the plastic bucket.

Storage conditions: it shall not be mixed with toxic, harmful and corrosive substances.

Precautions: 1. If consumers use it by themselves, they should use it correctly according to the instructions. 2. The blood collection device is only for one-time use and shall not be reused or shared by more than one person. 3. The blood collector shall be removed and used immediately. Abnormal needle tip and falling off protective sleeve are strictly prohibited. 4. If the blood needle is used together with the blood collection pen, it should be used by a single person for a single time. Do not reuse the blood collection needle. 5. Do not leave the blood collection needle in the blood collection pen after use. 6. The used blood collection needle shall be properly discarded according to the use method to prevent pollution or external acupuncture injury. 7. The blood collector is sterilized by confirmed y-ray or EB (electron beam) radiation. The sterilization validity period is 5 years. It is strictly prohibited to use beyond the validity period.