The ModMag Giga Magnet Set from AvidAqua offers a secure and versatile way to attach multiple accessories inside and outside your aquarium. Unlike traditional magnets that can leak over time, the ModMag Giga is ultrasonically welded and double-sealed for long-term safety and reliability. Each magnet measures 2.11" x 1.31" x 0.65", suitable for glass up to 3/4" thick, providing a strong grip without damaging your tank. This product is ideal for advanced reef keepers who need flexible mounting solutions for frag racks, probe holders, camera mounts, and other accessories.