Axis - Resuable Research Pen Metal 60 Unit (V2) Pen-Depot by ENDURAPEP Key Features: Precision-Controlled Delivery: Fine-tune each injection with an adjustable dial for 1 to 60 units per release, allowing consistent and controlled administration. Reusable Metal Construction: Built for long-term use with high-quality metal components that resist wear and provide a professional-grade feel. Universal Cartridge Compatibility: Fits most standard 3 mL long stopper cartridges designed for reconstituted research compounds. Cartridges not included. Sealed System Integrity: Designed to support compound protection by reducing air exposure and minimizing contamination during research use. Simplified Compound Tracking: Supports easy logging of delivery units and volumes during ongoing compound trials or rotation schedules. Note: It is not a medical device. This is not a writing instrument. Use only in accordance with applicable research guidelines.