Bling Jewelry Biker Link Mechanic Style Chain Stainless Steel Mens Necklace 20 Inches This 0.3in men's biker chain necklace is a stainless steel accessory he's sure to love. The lobster claw closure helps secure this 20in mechanics chain and the byzantine style provides depth and excellence. Measure: 20in x 0.3in Weight: 124.6 grams Material: Stainless Steel Material: Stainless Steel Measure: 20.0 in L x 8mm W Weight: 124.4 grams This 0.3in men&#039;s biker chain necklace is a stainless steel accessory he&#039;s sure to love. The lobster claw closure helps secure this 20in mechanics chain and the byzantine style provides depth and excellence. Measure: 20in x 0.3in, Weight: 124.6 grams, Material: Stainless Steel.