CIPA 70000 Chevrolet/GMC Magna Extendable Power Replacement Towing Side Mirrors (Sold in Pairs) Fits existing mounting hole pattern (no drilling required) Includes 2 free 2.5" x 3.75" wedge HotSpot mirrors 10 x 10 mirror head extends and retracts a full 4.25 for a total extended length of approximately 22.25 Features fold-away and break-away features for tight spaces Available in manual, power, and heated power