High Quality baseball net bottom frame is made of thicker heavy-duty steel with black baking paint to avoid rusting. The flexible fiberglass bow is highly flexible and acts as a good cushion. Baseball net is made of strong 7-ply knotless nylon to ensure that hard impacts will not damage the net. Ground stakes are provided to hold the net in place to ensure that it remains stable and avoids tipping during use. Quick Set Up hitting net ,No tools required, this baseball pop up net can be set up in less than 5 minutes. Includes ground stakes for added stability.