Styrofoam Liner Insulation For USPS Box 4 - 7x7x6 Makes 20 Insulated Shipping Boxes

Interior size of the box  is: - width 5-3/4"

                                             - length 5-3/4"

                                             - height 5"

Outside of the USPS box (not included) is: -width 7-1/4"

                                                                         -length 7-1/4"

                                                                         -height 6-1/2 

Styrofoam insulation wall is 3/4"

Styrofoam insulation for USPS box 4. Size of the box is 7x7x6. USPS boxes are not included, they are free and can be picked up at the post office or ordered online. You can only ship USPS Priority Mail using these boxes.

Ideal for shipping aquatic pets like shrimp, tropical fish and snails. Installation is very easy. There are two larger square pieces, both same size, one goes on the bottom one on top. The rest of four pieces go around the side walls. Side pieces are also all the same size. These pre cut styrofoam insulation kits are designed specifically for USPS Box 4  that is 7x7x6 in size but they will fit any 7x7x6 box.

What is included 

You will receive twenty sets of pre cut styrofoam sheets  totaling 120 pieces that will provide insulation for 20 boxes size 7x7x6.