Pawfly Magnetic Glass Cleaner with Scraper

Hold the soft pad outside the glass, and the coarse pad inside follows wherever you move it. The Pawfly Magnetic Glass Cleaner holds through glass up to 0.7 inches thick, per the description, and a detachable stainless steel blade snaps on for mineral deposits and harder spots. A round slot on the handle gives your thumb a place to press. If the inner half lets go, it floats.

Two sizes are offered, Small and Medium, and the description does not match each one to a glass thickness. Measure your glass and lean toward the larger magnet for thicker panes. A loose inner pad drifts to the surface, where you can steer it to the edge and lift it out. Glass tanks only: the cleaner is not made for acrylic.