Coakley Antrum Trocars serve used to withdraw fluid from a part of the body, such as the sinuses. A cannula and irrigating extension are offered with the trocars to more assist the process. This Coakley antrum trocar is protected by the m ismaeel brothers manufacturer warranty on defects in materials and workmanship. Please note that website images are often representative of the product family and may not conform to the exact features of the item you select. The final features of the Coakley antrum trocar will match the description of the specific catalog item you select. Please review such specifications in the item description to ensure the correct product is ordered.