"items are limited" is correct and usable in written English.
You can use it when talking about a situation in which there is a restricted supply of something that cannot meet the demand. For example, "We apologize, but due to high demand, items are limited."
Snack items are limited to 200 calories per portion, and entrees limited to 350 calories per portion.
NorTheKorea Is About to Freak Out .
The plates before us, then, are perhaps just one drop of gochujang in a sea of kimchi especially as the genuinely North Korean items are limited to the single-bite hors d'oeuvres.
The items are limited to those available in the ISSP for multiple time points.
Mr. Philbrick and Mr. Klein both play down the value of what was given away and what is left, noting that only a fraction were by artists whose names mean much to the general public, and some of those items are limited editions, not one-of-a-kind works.
The number of manufacturers who produce these highly specialized items is limited and thus the choices are relatively limited.
Missing data items were limited.
Also, items were limited to those that could be uniformly found in the records.
Estimates of nitrates, nitrites, and nitrosamines from food items were limited to the food items represented on the WFFQ.
Bias caused by participants that were left out of the analysis due to missing items is limited, because those participants represent no more than 1,5% (atypical symptoms) to 5,2% (melancholic symptoms) of the total patient population.
While there was a reasonable response rate to the questionnaire, the poor provision of health education meant that statistical analysis of some questionnaire items was limited by small sample sizes.
