Single Hooked Brass Masses – 10 Gram Weight
by United Scientific

Made out of polished brass, these hooked masses feature a single hook. Each one of them is carefully tested and calibrated (but not certified), to ensure their accuracy. Unlike their double-hooked brethren, these weights cannot be chained together one underneath the other, though they can be hung from a rope or used on the weighing platform of a mechanical or electronic balance or scale.