Color: black/white (we will send colors randomly) Package Include: 1 Pack 100 or 50pcs Material: Copper + stainless steel Features: Made of stainless steel, no rust. Can be used in sea water. High strength and great pulling force. Easy to use. Note: Please allow 2%-3% error due to manual measurement. Thanks for your understanding. The color may be slightly different from the real one due to the light.