Necklaces / Pendants by Sarah Packington Pebble shaped acrylic pieces, with a black etched lines and sanded white scratches on a clear polished surface. Strung on two nylon covered stainless steel wires, with a silver catch. Features Primary Material : acrylic Other Materials : silver, stainless and steel nylon One of a Kind : No Hallmarked : No Length (inches) : 18 Cleaning InstructionsTake care not to scratch. Clean with a mild detergent, warm water and a soft cloth. Do not spray with perfume or hairspray.