2021 Topps Stadium Club Chrome Baseball Hobby Box – Factory Sealed?? Up for sale is a brand new, factory sealed 2021 Topps Stadium Club Chrome Hobby Box. These are a fan-favorite release known for their stunning photography, chrome finish, and strong autograph checklist. Stadium Club Chrome continues to gain popularity due to its on-card autos and premium feel, making it a great rip or long-term hold. Strong mix of rookies, superstars, and Hall of Famers.