The phrase "a number of different items" is correct and usable in written English.
It can be used when referring to multiple distinct objects or elements in a context where variety is emphasized.
Example: "The store offers a number of different items, including clothing, electronics, and home goods."
Alternatives: "several various items" or "a variety of items".
Writer mentions a number of different items which were distributed and raffled off by various exhibitors.
For a couple of dollars, you can get printed on a number of different items, such as beer steins and key chains, or on a piece of fancy paper, a little legend about almost any name.
A number of different items from the illness representations measure, together with locus of control and social support, explained relatively high proportions of the variance in each stage of change in the two groups.
Standardised outcome measures themselves usually consist of a number of different items assessing different aspects of the patient's functioning.
There are a number of different items that you can erase.
The service supports price comparisons from item pages in a number of different sites: Google, Froogle, Yahoo, MSN, Ask, Become, Shopping.com, PriceGrabber, Shopzilla, PriceRunner, Amazon, Buy.com, Bestprices, J&R, and Walmart.
From the medical perspective:x All interventions require advance preparation of the patient from the nurse, as well as advance preparation of multiple medical items and tools from a rather voluminous inventory (i.e. a large number of different items held within the inventory rather than a large inventory of a few different items only).
The modelling and subsequent experiments were performed for a compartment representing a typical lounge in a residential occupancy with a number of different combustible items located in pre-defined positions, and a specific ignition source.
The fact that none of the items had an IER of 100% and that the number of different items used at some point was high indicates that the system actually adapted the items presented to the individuals in the sample, pointing to the adequacy of a CAT for HRQoL measurement.
Variety of intake was derived from the total number of different items consumed in a 1-week period.
Variety of fruit, vegetables, and combined F&V intake was derived by calculating the total number of different items consumed at least once in a 1-week period, irrespective of quantity of intake.
