These anti-tamper security seals are made of high-quality transparent plastic with colored locking tabs (red, yellow, blue, black) for easy color-coding and identification. Each seal features a unique serial number and scannable QR code for digital tracking, inventory management, and anti-counterfeiting. The one-time snap-on locking mechanism provides reliable security for electric meters, gas meters, cabinets, and utility equipment, widely used in power, water, and gas supply industries.