Interchangeable Solar System Necklace Chain Length:18" if you don't have a

if you don't have a measuring tape you can use a piece of string and then measure it against a flat ruler

Venus: 1 1/4" (32mm)

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the Perseverance Rover landed on the surface of Mars with a message hidden in its parachute - a pattern representing letters as binary computer code

Interchangeable Solar System Necklace Chain Length:18" if you don't have aLooking for the perfect travel jewelry? Hassle free fashion? A necklace that is multiple necklaces in 1? Look no further! This listing is for an interchangeable magnetic necklace with 8 planets, our Moon and Sun in the set! You can also add Pluto if you wish. Can't choose just one beautiful space discovery to love? Now you don't have to. Available in silver or bronze tone on an 18" or 30" chain. Uses a very strong magnetic combination so the planetary