Fangrui Product Details Compatibility - The Bathroom Sink Drain Kit Fits Suitable For With Drain Holes 1-1/2 Inch Diameter. Both No Overflow Bathroom Sink And Overflow Bathroom Sink Can Be Used. Premium Material - Which Can Prevent And Rust, Its Extremely Tough, , Anti-cracking, And Effectively Prevents Water Leakage. Deodorant Function - The Odor- Inner Core Was Designed, And The Deodorant Core Has Automatic Drainage, Closed When Flexible Sink Drain Pipe Kit Does Not Work. The Deodorant Plug Effectively Blocks Reptiles And Odors From Entering The Blocked Pipe To Achieve The Deodorization Effect. Tool Free Installation - No Tools Are Required For Installing Bathroom Drain Kit. Due To Its Simple Construction, The Thickened And Extended Nut Anyone Can Install Drain Pipe With Their Bare Hands. No Water Leakage - The Universal Bathroom Sink Drain Pipe Assembly Has A Thickened, Silica-gel Gasket ( At The Junction Of The Drain Plug And The Drainer ). Please The Gaskets Are In The Correct Position To Avoid Leakage. Col