What does a couple's finger represent?

Small tattoo pattern on lovers' fingers 1: pattern name: line tattoo pattern comments: small tattoo pattern with curved lines is very suitable for tattooing on fingers, delicate and very artistic and beautiful ~ ~

Couple tattoo pattern on finger 2: Pattern name: English letters Comments: Like a ring, the couple tattoo pattern is dotted with fingers with English letters, holding hands to maintain your's exclusive love.

Couple tattoo pattern on finger 3: Pattern name: English letters Comments: The ring is an ornament symbolizing love, and the permanently preserved couple tattoo pattern is very beautiful to wear on the finger!

Couple tattoo pattern 4 on finger: pattern name: English letter comments: couple tattoo pattern dotted on tail finger, black and white.