Sturdy Construction
It must be strong enough to hold the weight of wet towels without bending or collapsing.
Common materials include steel, aluminum, strong plastic, or wood.
Rust-Resistant
Since it is exposed to moisture, it should be made of stainless steel or coated with anti-rust paint to prevent corrosion.
Easy to Clean
A good towel rack should have a smooth surface that's easy to wipe clean and doesn’t accumulate dust or dirt easily.