Ruth & Dean - Well done ULINE, you put two shippable boxes, inside a massive larger box and filled it with soft plastics. The negative space inside this box is about twice
Amazon.com: PHAREGE 4x4x2 inch Shipping Boxes 25 Pack, Brown Corrugated Cardboard Mailer Boxes, Small Mailing Boxes for Packaging Small Business : Office Products
Amazon.com: 50 pack Small Shipping Box,4x4x1'',Corrugated Mailer,Wonfer Cardboard Box, White : Office Products
Uline Products
Amazon.com: HORLIMER 4x4x2 inches Shipping Boxes Set of 25, White Corrugated Cardboard Box Literature Mailer : Office Products
Uline: Catalog Request
Reverse Tuck Cartons - Kraft, 4 x 4 x 8" S-16330 - Uline
Box Guide - Uline
Amazon.com: Small Cardboard Shipping Box Mailers 7 x 4.3 x 1.6 Inch Corrugated Packaging Storage Boxes 25 Pack : Office Products
Boxes, Shipping Boxes, Cardboard Boxes in Stock - ULINE
Amazon.com : MEBRUDY 13x10x2 Inches Shipping Boxes Pack of 25, Small Corrugated Cardboard Box for Mailing Packing Literature Mailer : Office Products