About This GIDDS-710001 Sink Gasket (3-3/8"): Designed for all standard kitchen sink drains, this self-adhesive gasket ensures a secure, watertight connection compatible with stainless steel, porcelain, and composite sinks Upgraded Adhesive Backing: Features a strong adhesive layer on the back for quick, mess-free installation. Simply peel and stick—no plumber’s putty, no residue, and no need for tools or sealants Durable Rubber with Strong Adhesion: Crafted from premium flexible rubber with industrial-grade adhesive, it resists cracking, shrinking, or deformation while maintaining a firm hold and consistent leak-resistant seal even under temperature and pressure changes Easy Installation, No Tools Required: Just remove the old gasket, clean the surface, peel off the backing, and press firmly in place. Tighten the drain fitting for a reliable, watertight connection in minutes Package Includes & Notes: Includes four 3-3/8" self-adhesive sink gaskets (4-Pack). Please measure the required size carefully before purchase to ensure proper fit for your sink drain