It's fluorescent green. 〈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 parts: 1 Small device fixing parts: 4 〈Improvements〉 ✔ Improved version that solves the problem of difficulty in attaching and detaching. ✔ The trick to removing it is to twist it while pushing it in. ✔ The outer diameter of the large device part has been made larger to prevent the cooling device from falling out even if the hole in the vest stretches. 〈Remarks〉 Please use it for parts repair, spares, and repairs. Since it is created with a 3D printer, there are unique layer marks. We have confirmed the installation, so it is listed as "Like New". Please pay attention to the size and quantity. Also, please refrain from leaving it in a car in the hot sun, as it may deform. Please refrain from asking for a discount.