We know that a finished bottle is usually bottled manually after the body and cap are produced. Generally, bottling only needs to tighten the cap slowly, and the speed is faster, but the roll-on bottle has more beads on the bottle head, so it is more troublesome and time-consuming when bottling. In addition, because the roller ball bottle head is a steel ball, it will cause finger pain when squeezed into the bottle body, and a large number of bottles will cause finger damage. Therefore, it is best to wear gloves to protect yourself when filling the roller ball bottle. Fingers.