about this item: The sponge is made of cellulose fiber, which is natural and soft enough for use on swimming pools, floors, bathtubs, aquariums, and helps protect surfaces from scratches. The household scrub brush is a versatile and effective cleaning tool that can be used indoors or outdoors. It is designed to easily and efficiently remove grime and stains with minimal effort. Cleaning tile with a manual brush can be difficult, so the scrub brush handle has been designed to be ergonomic. The handle features an ergonomic shape that provides a better grip and makes cleaning more comfortable and easier to use. It helps remove dirt around spas and grime on the inner sides of pools. The sponge brushes not only clean pools, but also remove stubborn dirt from pots, pans, glasses, baking pans, homes, and kitchens, helping keep spaces clean. Ideal for cleaning hot tubs, swimming pools, bathtubs, spas, aquariums, and boats. These scouring pads can also be used to clean walls, floors, desks, countertops, and other kitchen equipment. Features: - The cleaning brush is soft and its high density enables safe and effective cleaning. - Lightweight, easy, and convenient to carry and use, allowing you to keep various areas clean. - Helps maintain clean and healthy water. Suitable for swimming pools, spas, hot tubs, and large aquariums. - Suitable for above-ground and in-ground pools. Also ideal for spas and hot tubs. - The cellulose sponge can be used on kitchen sinks, bathtubs, floors, walls, and most surfaces. Specification: Material: Plastic + sponge Color: Blue and White Size: 14.5 x 8.5 cm / 5.7 x 3.35 inch Delivery range: 2 * Pool brush Note: The data is from manual measurement. Please allow 1-2 cm error. Due to differences in lighting and screen settings, there may be some color variation. The actual product may vary slightly.