Many blood-transmitted diseases – Hepatitis B, Hepatitis C, HIV, and others. People involved in sports activities often suffer from injuries. Hands are the most vulnerable parts due to their soft, thin skin, making them susceptible to heavy impacts from activities like hitting and weightlifting. Blood can be found on palms, fingers, and forearms. If people use the same tool, blood can be transmitted through the device grip. Like other sports devices, the Bullet Stroke grip can become contaminated with blood. Not always comfortable to use gloves. The Bullet Stroke device grip can be disinfected, but the best way is to use the device personally. In many situations, ordinary hygiene instructions can prevent disaster.