You are looking at a dual strap for a golf carry bag from an Ogio Wisp / Izzo (White / Blue).  I bought this bag new (last two pictures) and removed the dual strap and replaced with a single strap before using.  Nice, new dual strap with four attachment points with multiple adjustments for comfort and functionality.  The dual strap is for sale in this listing. 

Please note: bag and clubs are not for sale.

Thanks.