This item has a chameleon-like metallic finish that shifts colors, appearing copper, green, and purple depending on the angle. Product Name: Workman Wind Core Ice x Heater Peltier Vest PRO2 Fixing Parts Compatible Products: Workman Item No. WZ-5 2025 Model WindCore ICE x HEATER Peltier Vest PRO2 Wind Core Ice x Heater Peltier Vest PRO2 Product Contents: Large device fixing part: 1 piece Small device fixing parts: 4 pieces Improvements: ✔ Improved version to resolve the difficulty of attaching and detaching. ✔ The trick to removing it is to push and twist. ✔ The outer diameter of the large device part has been increased to prevent the cooling device from falling out even if the hole in the vest stretches. Notes: Please use for parts repair, spares, or replacements. Due to being created with a 3D printer, there may be unique layer lines. Since the item has been tested for installation, it is listed as "Like New." Please pay attention to the size and quantity. Also, avoid leaving the item in a car under direct sunlight, as it may deform. Please refrain from asking for a discount.