[noun] + は + あり(だ/です) [verb (plain)] + の + は + あり(だ/です) [noun] + あり
あり, from the verb ある, has two jobs. In casual speech it is a verdict: "that works", "that's an option", and it takes だ or です like a noun. In listings and notices it follows a noun and means "with", "available".
The opposite verdict is なし, "no go". The two often come as a pair: "yes or no?"
The verdict is slang. In polite or business speech, say いいとおもいます思います or かのう可能です instead.
After a noun, あり says something is there or included. You see it in job ads, property listings and hotel plans, and it is neutral in register. なし is "without".
On a price, そうりょう送料あり means shipping is charged, and そうりょう送料なし or そうりょうむりょう送料無料 means it is free.