I want to state that the clasping system in my invention can be used in any size of enclosure. Specifically, I have doubts between using the words: "may" or "is"
2 examples:
"enclosure may be realized in any of a continuous range of sizes large enough to comprise a void no smaller in size and shape than said first fastener part and said device..."
or
"enclosure is/may be inconstantly/variably sized..."