2 Red 1 Black... Smooth tops with wavy/grooved bottoms "Stanley Quality" Pat # 2149556. Circa 1930's.
To Use You pull the Magnetic Cleaner across the Item to be cleaned Use on Sofa Or Chair Arms, Seats, Backs The grooves magnetically draw dust or lint into each Groove. Are easy to Hold & use $5.50 + $7.50 P&H Each OR Buy all 3 for $15.00 + $10.85 P&H