Small Cardboard Boxes Double Wall 3x3x3 inches Mini Mailing Box Perfect for Storing and Shipping 20 Pack : Amazon.ca: Office Products
Gift Box, 6.93" x 4.21" x 0.94" Yellow Cardboard Boxes for Birthday Wedding Party Anniversary, 6 Pack | Walmart Canada
Shop Online 100% Recyclable Corrugated Mailer Boxes | BannerBuzz CA
Mailer Boxes – Colorel
5.6x4.3x3.1 inches Shipping Boxes Set of 25, White Corrugated Cardboard Box Literature Mailer,Die-Cut Shipping Cartons, Small White Mailing Boxes | Walmart Canada