Thats what gives them the 3D effect... Puffed gucci chains feel light and confortable to wear because its like a ball of silver and is empty inside! Here are weights as 8" bracelets & 24" chains (Obviously if you chain is longer or shorter weight will vary). 6mm - 24" - 20 grams (8" - 7 grams). 8mm - 24" - 32 grams (8"- 10 grams).12mm - 24"- 53 grams (8"- 19 grams) Very shiny and nicely made! Let us know if you have any questions! This item is in the category "Jewelry & Watches\Men's Jewelry\Necklaces & Pendants". The seller is "harlembling_usa" and is located in this country: US. This item can be shipped to United States, all countries in Europe, Canada, Denmark, Vatican City State, San Marino, Ireland, Netherlands, Sweden, Iceland, Spain, Belgium, Liechtenstein, Italy, Switzerland, Portugal, Malta, Austria, Norway, Andorra, Finland, Luxembourg.