The Wingmaster Great Dane Trailers Rear Frame Filler is a practical and reliable solution for reefer trailers. This rear frame filler is designed to fit most Great Dane Trailers and features two 2" round holes and two 4" round holes, allowing for easy installation. With its durable stainless steel construction and dog logo and text, this rear frame filler not only enhances the appearance of your trailer but also ensures long-lasting performance. Sold individually, this reefer rear frame filler is a must-have accessory for any Great Dane trailer owner.