Returned item to online retailer has been unboxed and inspected, not tested.  According to item documentation box contents are complete though Rydonair website suggests that an M6 or M7 adapter might be required depending on the year of your vehicle.

FITS: Chevy Silverado colorado Avalanche Suburban & GMC Sierra Denali Terrain Canyon all model years.

Allows shape memory so antenna springs back into shape when bent. Premium Rubber outer construction for weather resistance & durability.  Improve the look of your Chevy & GMC truck by replacing your 31” long metal shaft antenna. It can screw onto your existing antenna mount in seconds.  
Designed for either AM or FM bands. It performs better in reception than other low profile antennas.

7” Flexible Rubber Antenna Replacement fits Chevy Silverado / GMC Sierra - Denal

SKU: 211702
GST/HST Included