Pleas Make Sure Your Sizes and For Which Purpose 40mm is for kitchen sink 32mm is for ceramic wash sink Waste For Toilet Basin And Kitchen Sink 11/4 Or 1-1/2 Stainless Steel Waste Suitable For All Kinds Of Basin In Your House. Complete Set Of 11/4 Inch Waste Including Chain Set , Stainless Steel Screw, Plate , Rubber And Etc. Problem: Normal Steel Screw Always A Problem Since Screw Can Be Broken/Eaten Up Over Period Of Time. Special Features: Consists Of 11/4 Stainless Steel Waste, Stainless Steel Screw , Brass Nut With Chain Set. Long Stainless Steel Screw Of 2.5Inches Length. Solid and Thicker Waste Rubber To Prevent Water Leaking At Bottom Over Period Of Time. Anti-Rust Stainless Steel Screw Will Prevent Waste Being Broken Or Loosen. Prevent Screw From Being Broken After Long Period Of Time. Advantages: Save Your Time By Changing Basin Waste And Bottle Trap Regularly. 请确定您的尺寸和用途 40mm用于厨房洗碗盘 32mm用于陶瓷洗脸盆