Black Hydroponic 29 Gallon Aquarium Light Risers With Dual Sided Extended Tabs For Additional Light Fixtures For Rimmed Fish Tanks 3D Printed (gray & black color options shown). Lightweight Fish Aquarium Décor. Message for color options/customizations. NEW custom 3D printed product, unused, unopened, undamaged (handmade item); *see measurements/product description below Approximate dimensions: Height: 4.5" Length: 6" Rim Width: 18mm *Narrow grooves for adjustable metal supports, as modeled with Aquaneat aquarium lights measuring 5mm; fits MOST 29 gallon aquariums Materials: PLA - Polylactic acid or polylactide is a polyester made from renewable biomass, typically from fermented plant starch like corn, cassava, sugarcane or sugar beet pulp. Disclaimer: While we strive for high-quality results, due to the nature of the 3D printing process, you may observe slight imperfections such as layer lines, minor measurement inaccuracies, or support marks, which are inherent to the additive manufacturing process. Designer: midstate515 SKU: 3D00-AN