SPECIFICATION: straight style, spring loaded, vertical bolt, 2.5" bolt spacing, 30" length. 24"x 3" straight aluminum reflectors with DOT-C2 conspicuity tape. COMPATIBLE WITH: Semi Truck: Freightliner, Kenworth, Peterbilt, International, Mack, Volvo. INSTALLATION: easy to install with provided nuts for the mounting studs, no cutting or drilling required. Check your bolt spacing from center to center before placing an order. HIGH QUALITY: made of heavy duty steel with chrome plated finish solid and rustproof during various weather conditions. WHAT YOU GET: A pair of 2.5" bolt spacing stainless steel straight mudflap hanger set (left and right side). A pair of aluminum reflective strip sticker. Bolts for mudflaps are NOT included.