Polyform U.S. 9in Diameter Fender Holder Kit - 2 Pack. Made from durable materials these fender holders are built to last many years and provide a professional look for any vessel. The modular design and hardware attachments allow for a wide array of options for boat fender storage. Specifications for Polyform U.S. 9in Diameter Fender Holder Kit: Manufacturer: Polyform U.S. Fabric/Material: Steel Color: Silver Package Contents: Polyform U.S. 9in Diameter Fender Holder Kit Polyform U.S. TFR-230-2K: 9in Diameter Fender Holder Kit - 2 Pack