BSO-054 4in1 Wire Cleaning Balls 7.5cm

Material composition: They could have a combination of stainless steel, brass, and other materials for better cleaning.

Ergonomic design: The balls might be designed to clean the tips from multiple angles or surfaces simultaneously.

Compact size: The 7.5 cm dimension could be the size of the entire ball, making it compact and easy to use.

Long-lasting: These types of cleaning balls are designed to last for a long time without getting worn out quickly.