expression
Used after a noun or clause to downplay something as being merely that and nothing more, often with a dismissive or modest tone.
彼ができるのは、せいぜい簡単な計算くらいのものだ。
The most he can do is just simple calculations.
私の英語力なんて、日常会話くらいのものです。
My English ability is only about everyday conversation level.