Costco Sale: Bracketron Universal Smartphone Holder 2-Pack $24.99 by Rhonda July 24, 2020 12/21/14. Costco has the Bracketron Universal Smartphone Holder 2-Pack on sale for $24.99 (after manufacturer’s instant rebate), now through December 24, 2014. That is $5 off Costco’s regular price of … 0 FacebookTwitterPinterestEmail