If you have a digital scale that needs calibrating, these calibration weights are the thing you need. With weights from 500g downwards (200, 100, 100, 50 as far as single gram units). Made from stainless steel.
Digital scales are great: accurate, affordable and easy to transport. But they can be a bit of a black box. Are you sure yours are really accurate? Find out with this set of calibration weights – there’s no arguing with physics!