Protect your RV Wiper Blades from UV damage and premature aging. Set includes 2 wiper blade covers that are made to fit wiper blades up to 31 inches in length. Constructed using super heavy-duty vinyl that is designed to look and feel like diamond plated steel. ADCO has produced more than 20 million protective covers and assorted soft-goods. ADCO’s quality, value and uncompromising customer service is second to none.