CIPA 70611 Extendable Replacement Electric Heated Towing Mirror fits 1999-2002 Silverado and Sierra Pickup - Left Hand Side Fits existing mounting hole pattern (no drilling required) Includes 1 free 2.5" x 3.75" wedge HotSpot mirror 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