Specification: Material ABS Plastic Color Black Button 3 Buttons (Lock, Unlock, Horn) Shell Dimension 5.5x 3x 1.3cm Blade Length 4cm Fitment For Great Wall Harvard H3 / H5 models Instructions:1. Open your existing key.2. Remove internal module/chip & transfer to new replacement.3. Screw/click the key back together.4. Take your key to a locksmith to cut the blank key if provided with this product.5. Test to check everything is working fine. Package Included:1 X Remote Key Case With Blade