Designer Series Magnavore-10 Cleaning Machine Magnavore-10 is ideal for service companies, zoos, public aquaria, and the occasional private individual lucky enough to need this truly amazing cleaning magnet. Designed for glass and acrylic tanks between 1" and 1-1/2" thick. Extra large 4" x 2-3/4" cleaning area. Precision crafted, beautiful to look at and efficient to use. The ultimate cleaning machine for ultimate fish tanks! External Half Magnet: * External half magnet is a 4.0" x 2.75" injection molded ABS shell featuring a raised designer 3D graphic. * Twin rare earth magnets are epoxy encapsulated inside the shell. * Natural felt contact pad safely protects glass and acrylic. Wears thin over time and is replaced as needed. Included with every Tune-up kit. * Internal half magnet is made of 4.0" x 2.75" solid waterproof ABS casing with two rare earth magnets embedded in a non-toxic resin. * The contact surface is a medical grade Velcro with tremendous cleaning power on glass. It also acts as a holder for acrylic safe pads. * Impervious to fresh and salt water. Can be kept continually submerged. * Choose cleaning surface according to tank type. * Soft polyester scrubby pads for acrylic aquariums, go over the base pad. * Abrasive base pad for glass aquariums. * Replace as necessary.