I Robert Harrison owe Peter Jacob $25,000 (twenty-five thousand dollars) as of 3/27/08 for the following: 1)

Question:

I Robert Harrison owe Peter Jacob $25,000 (twenty-five thousand dollars) as of 3/27/08 for the following:
1) $15,000 for Caterpillar loader.
2) $5,000 for a loan.
3) $5,000 for a tag-a-long trailer.
Would this instrument qualify as a negotiable instrument?