JBLdisc cleaning magnet for 6 mm thick Aquarium-slices, JBL Algae magnet L - S

Very strong magnets and does the job required. My only criticism is the price. At the end of the day these are just magnets with souring pads on them. Quite expensive for what they actually are, however they do the job i purchased them for.

Doesn't go round corners so spent most of its time lying on the sand before landing in the bin

Well this magnet is STRONG. Finally good product.