Thank you for visiting! All orders are shipped for FREE within the United States. For international sales, shipping costs will be added to the purchase price. Please contact us with your shipping address for a parcel quote. Orders before 2PM CST will be shipped the same day. Our items have never been installed and are sold as open-box products, unless otherwise noted. While the boxes may have slight damage, as shown in the pictures, the items themselves are carefully inspected to ensure they are not damaged or missing any pieces. We accept returns on items that have not been installed or damaged within 14 days of your purchase. In the rare event that an item is defective upon installation or has any blemishes not previously stated in the description, we will discuss a refund or exchange. Please, reach out if you have any issues that need to be addressed. Our goal is to achieve complete customer satisfaction. We appreciate you viewing this listing and look forward to serving you. Sigma 49392 ProConnex 3/4-in Plastic Knockout Bushing Conduit Fittings (Pack of 10) - Black Sigma's Knockout Bushings provide a smooth surface to prevent damage to wire when pulled through a knockout. These non-metallic bushings offer a one piece construction to readily snap in place. Knockout bushings provide a smooth surface that protects wires in a knockout One piece construction to snap in place Trade size 3/4-in Non-metallic construction