It can be in the form of either bubble pack
(available from office supply outlets, or paper products suppliers--1-inch bubble size is ideal), or in the form of closed-cell foam sheeting, available also from the same sources.
In-store, customers receive a voucher, pre-paid shipping label and bubble pack
mailer, and simply ship the old phone to TWS at their convenience.
Leaving the two tubing ends sticking out, I insulated the tank with radiant barrier, which is reinforced aluminum foil, then a layer of Reflectix, which is double bubble pack
covered with Mylar.
If an over-pampered, over-paid fashion goddess with nothing better to do than drink 80 gallons of water each day and graze on the odd lettuce leaf can't keep her bum from resembling bubble pack
, then what chance do the rest of us stand?
A rigid bubble pack
which gives fragile asparagus better shelf visibility because it can be stacked vertically is being sold by Sainsbury.