About This UNIQUE DIATOMITE MATERIAL: Made from natural diatomaceous earth and plant fiber for superior water absorption and quick drying NON-SLIP DESIGN: 5mm thick non-slip pads enhance stability and airflow to speed up moisture evaporation VERSATILE USE: Ideal for soaps, cups, sponges, and bottles to keep surfaces dry and organized COMPACT SIZES: Square tray measures 3.15" x 3.15"x 0.33"; Rectangular tray measures 6.3" x 3.15" x 0.33" for varied needs PACKAGE CONTENTS: Includes two square soap trays, two rectangular soap trays, sixteen non-slip mats, one sandpaper, and one manual EASY TO CLEAN: Rinse with water and wipe with a sponge, then sun dry or air dry for hassle-free maintenance CUSTOMER CARE: Responsive support available for any product questions or issues Overview Color : Set of 4 Gray Material : Diatomite Brand : NiuYichee Shape : Rectangular Product Care Instructions : Hand Wash Only