Crafted from polyester and cotton materials, this sponge ball maintains its shape after multiple uses and protects delicate surfaces like acrylic from scratches, ensuring longlasting reliability as a scratch freely cleaning sponge Effectively removes stubborn scum and oil deposits from hot tubs with its polyester and cotton blend, designed for cleaning and tackling mineral buildup issues, making it a top rate hottubs sponge Ideal for families, and homeowners seeking cost effective tools for daily maintenance without frequent replacements Enjoy effortless, time saving cleaning with this multifunctional sponge ball, promoting surfaces hygiene and reducing manual effort while adapting to cleaning challenges Versatile for use in hot tubs, washing machines, pools, and various household areas requiring oil and scum removal, enhancing cleaning efficiency across different environments