StoreSMART - 11"x17" - Crystal-Clear Acrylic Rigid Print Toploader Frame with 10" Double Wing Easel Back - 10-Pack - HPP11X17EB-10 Made of clear, high-impact 16 mil PVC vinyl with a 40 mil opening. Overall size: 11 7/16" x 17 1/4". Inside capacity: 11" x 17". Open on the short side. 10" Easel back attaches in either portrait or landscape mode.