Madewell Holding Pattern necklace

Madewell “Holding Pattern” necklace, geometric shapes on an adjustable box chain. Pre-owned but worn literally once. The necklace has some tarnishing that was there when purchased (maybe glue?). May be removable but never tried. To adjust the necklace, gently grasp the barrels and slowly slide them along the chain. Length: 34". Adjustable sliding closure. Gold-plated brass. Clean your jewelry after each wearing with a soft cloth.