81 differentiated vocational mailing letters for sorting independent work task bin, (27 per set). Sort by different levels of zip codes and states.This comes with:Letters that Sort by {Level 1 Zip Codes} 90630, 32904, 18330Letters that Sort by {Level 2 Zip Codes} 90630, 90620, 92683Letters that Sort by {States} CA, FL, NY, NVAll of the above with highlighted zip codes or states for lower level learner.Prints to envelope sizes 9.5x4 and different sized labels for sorting bins.Labels for sortin