The T&S Brass B-7K Eterna Spindle Master Kit is a comprehensive solution for faucet maintenance and repair. This kit includes 12 right and 6 left Eterna inserts, along with 12 right and 6 left spindle inserts, ensuring compatibility with a variety of faucet models. It features 6 packing nuts, 50 lever handle screws, 25 seat washer screws, 25 top gaskets, and 25 swing nozzle O-rings, providing all the essential components for a complete overhaul. Additionally, the kit contains 50 seat washers and 50 packings, making it an ideal choice for both professionals and DIY enthusiasts looking to maintain optimal faucet performance.