Mop heads are made of microfiber. Buckets and some handle components are made of plastic and metal.
The mop heads are machine-washable and reusable; product listings note they can be laundered and reused rather than disposed of.
The mop uses a triangular (triangle) mop head plus 360-degree rotation. That shape and swivel action help it get into corners, along baseboards and under furniture.
The RinseClean bucket separates clean and dirty water into two chambers so you can mop continuously with clean water instead of reusing dirty rinse water.
Refill options are offered in single-pack and multi-pack formats; available package quantities listed include 1 and 2, and some listings explicitly state packs that include two refills.
To remove a refill: step on the microfiber strands and pull the handle up to separate the base. To attach a refill: align the mop head with the base and push down until it snaps into place. Listings consistently describe stepping on the strands and lifting the handle as the removal method.