Use a reference object to explain product dimensions

A reference object can help a viewer interpret scale when its size is identified and its position does not distort the comparison.

A practical procedure

1. Choose a ruler or clearly measured reference rather than an item whose size varies between brands.

2. Place reference and product on the same surface at a similar distance from the camera.

3. State the product's actual dimension after showing the comparison, including which edge was measured.

Worked example: a fictional session

A fictional pouch demonstration places a labelled 15-centimetre ruler alongside the opening and states the opening width separately from the pouch body.

Check the limits

A visual reference communicates scale; it does not establish fit for an unmeasured item.