Product
A make/model/variant of equipment.
Example: “Beal Access - 10.5mm 100m Orange”
Item
A physical piece of equipment you own, usually with its own serial number. Many items can share the same Product.
Example: “Petzl Vertex Vent – Serial #18C0123456”
When you add equipment to your inventory, the first step is usually identifying the Product. Once the Product is selected, your items are created using the product’s information.