Upgrade your vehicle's wiper system with this 21-inch ANCO 31-21 Windshield Wiper Blade. The 31-series wiper blade features a black metal frame and plastic construction, ensuring durability and longevity. The easy installation process and refillable design make it a convenient choice for any vehicle owner. The blade type is conventional/bridge, and it has eight pressure points for a thorough and reliable wipe. The wiper blade connection type is J-Hook: 9x3mm, 9x4mm, and Classic Side-Pin: 1/4". This package includes ten wiper blades and is compatible with J-hook arm windshield wipers. Upgrade your car's wiper system today!