Aerator key material: the faucet aerator keys are made of plastic, strong and sturdy, which can effectively remove faucet aerators Quantity and Size: faucet aerators size: 16.3 mm, 18.2 mm, 21.3 mm, 23.7 mm, 3 pieces for each size, 12 pieces in total, with 5 pieces faucet aerator key removal wrench tools, sufficient quantity can meet your needs Suitable for Partial Faucets: please measure the diameter of the internal thread of your faucet before ordering, and check which size of faucet aerators fits it; Note: only fits for female faucets Easy to use: with these aerator keys, you can easily unscrew your faucet aerator out and then replace or clean the blocked one, fixing low flow faucets Aerator key: help remove most faucet aerators, please measure carefully before buying in case of unfit situation Product Notes: Please allow a little manual errors.Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please confirm acceptance before ordering. About Shipping: Please ensure your shipping informations are correct to avoid delivery issues. All orders are shipped within 3 days after payment. Delivery usually takes 8–12 days, The specific delivery time is depend on circumstances. If you have any questions during your purchase, feel free to contact us. We will respond you within 24 hours.