Standard size 3-1/2inches opening: Fits for most American families / commercial kitchen sink. It can fit for sink with 3.23inches - 4.45inches opening. The height of this kitchen sink drain is 3.85-inches. Please measure if it is fit with existing plumbing before buying. Well made 304 stainless steel construction, except plastic nut (Metal nut will corrode, bonding the nut to the strainer) and brushed nickel finish. Good material protect against corrosion & rust, ensuring quality and longevity. The removable separate deep basket prevents debris from clogging drain pipe. ( NOTE: It can not be connected to the garbage disposal.) Easy to install: No need plumbers. Installed easily without any tools. You can contact KONE if you need help for installation. 2 years Guarantee(from order date), if there have any problem with our products, please contact us directly, we'll responsible for all products from KONE., Weight: 0.6 pounds, Manufacturer: KONE