Feature 1, With security chip, you control your auto at any time. 2, High quality plastic and humanized precise design. 3, This key requires a dealer or locksmith to cut and program it. 4, The symbol of elegant and fashion, distinguished identity accompany with you. 5, Excellent abrasion resistance, it can be used for a long time.Feature: With security chip, you control your auto at any time. High quality plastic and humanized precise design. This key requires a dealer or locksmith to cut and program it. The symbol of elegant and fashion, distinguished identity accompany with you. Excellent abrasion resistance, it can be used for a long time. Comfortable tactility and delicate polish. Specification: Condition: 100% Brand New Material: Plastic Color: Black Manufacturer Part Number: KOBLEAR1XT Button Quantity: 3 Button, 4 Button (Optional) Transmitter Radio Frequency: 315 MHz Size: 5.4 * 4.2cm/2.1 * 1.7in Package Weight: Approx 22g/0.8oz Fitment: for Cadillac Escalade 2002 for Chevrolet Avalanche 1500 2500 2002 for Chevrolet S10 2001-2004 for Chevrolet Silverado 1500 2500 3500 2001-2002 for Chevrolet Suburban 1500 2500 2001-2002 for Chevrolet Tahoe 2001-2002 for GMC Sierra 1500 2500 3500 2001-2002 for GMC Sonoma 2001-2004 for GMC Yukon 1500 2500 2001-2002 Package list: 1 * Remote Key Notes: 1. It need to match to use and can only match once. Functional key need professional matching. Please to find professional locksmith to do it. 2. Please allow 1-3cm error due to manual measurement. Thanks for your understanding. 3. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.