Source: https://twitter.com/Shayan86/status/1339328349295030278
The "disappearing needle" is not actually left in the arm, it's a spring-loaded syringe that automatically retracts the needle for safety.
Source: https://www.youtube.com/watch?v=wC-uXq3uUdQ&feature=emb_logo
The "disappearing needle" is not actually left in the arm, it's a spring-loaded syringe that automatically retracts the needle for safety.
Source: https://www.youtube.com/watch?v=wC-uXq3uUdQ&feature=emb_logo
