The 4 mil thickness is excellent as a stabilizer when properly conformed to the load when heat is applied. Shrink pallet bags are a good alternative to stretch wrap for transport and storage. Side gussets expand easily to fit over large or irregular size objects. Provides more holding power than strapping or stretch wrap when unitizing loads. Can be used without heat as pallet covers. Perforated bags come neatly wound on 3" core with 1" diameter core plug.