To become obtainable or to come into one's possession (used intransitively; indicates that something can be acquired or is available).
この商品は近くの店では手に入らない。
This product can't be obtained at nearby stores.
インターネットで詳しい情報が手に入る。
You can get detailed information on the internet.
彼の連絡先がようやく手に入った。
I finally got his contact information.