Features: 1.SAFETY MATERIAL: magnetic coral rack made of acrylic material, safe and harmless to fish and coral species, does not release and generate any toxic substances. Matching screws do not contain metal material, will not oxidize. 2.STRONG MAGNETIC: Magnetic acrylic coral rack is designed with strong magnetic suction cups, which can be freely placed in the fish tank where you want. 3.SPACE SAVING: Magnet coral stand bracket surface directly against the glass surface of the fish tank, maximum space saving, but also can show the effect of suspension. 4.DOUBLE LAYER: Acrylic coral rack adopts double layer design, so that the sps coral broken branch placement more shape hierarchy, maximum can be applied to 15mm thickness of glass. 5.FLUORESCENT DESIGN: Magnetic coral rack with fluorescent design, the lower layer of fluorescent green dark edge design, fluorescent color is not harsh, you can also install fluorescent panels on the surface of the bracket. Specification: Item Type: Magnet Coral Frag Holder Material: Acrylic Use: Fish Tank Double Layer Fluorescent Coral Holder Product Specification: (LxWxH) Size: Approx. 140x77x55mm / 5.5x3.0x2.2in (without Magnetic Suction) Size: Approx. 140x68x55mm / 5.5x2.7x2.2in (including The Tank Outside The Magnetic Suction) Number of Hole Holders: 8 Hole Diameter: Approx. 13MM/0.5in Applicable Fish Tank Thickness: Maximum 15MM/0.6in PackageList: 1 x Holder 1 x Magnetic Suction Note All data are measured manually, and there are certain errors in the measurement results.