The materials used to construct rolling machines, such as plastic or metal is important both to the performance of the product and the overall durability. The type of material used, how that material can affect the performance, and the overall quality of that type of material when comparing them to other competing products operating in the same market.
How a rolling machine is constructed, the components and the serviceability of the product by the end user is reviewed. Depending on how the parts are used and how the overall construction is designed, it should be consistent among multiples of the same product being sold to consumers.
Performance refers to how well a rolling machine functions compared to the buyer's expectation. A buyer's expectation is generally shaped by both their history with using similar products and any guarantees of performance or expectations being set by the product manufacturer. Guarantees and promises are taken into consideration when measuring performance.
Based on the materials that are used to construct rolling machines, it needs to be durable for long term use. Durability is the ability of a product to remain functional, without requiring excessive maintenance or repair, when faced with the challenges of normal operation over its design lifetime.
While value is something that can be difficult to measure, it is something that can be compared between similar products. During consideration of different rolling machines, the value the average buyer will see compared to how much they have financially invested into the product is reviewed.