Description: 100% Brand New & Nice Quality material:Stainless Steel Color:As the picture shows size: 12mm 16mm Features: An attractive way to make your aquarium shrimp safe. Tiny animals like most freshwater shrimp, invertebrates, as well as small fish and fry are at risk of being sucked into the large slots on most standard intake strainers. When cleaning is required, simply brush any accumulated debris off of the Filter Guard with your hand or a soft brush of some sort like a tooth brush. Please note that Stainless Steel Filter Guards fit over the filter's intake pipe, not over the strainer. If your filter has an integrated strainer, these Filter Guards will not work without Specifications: 100% Brand New & Nice Quality Package Included: 1 xMesh Filter Notes: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!