The Tuffpak is rotationally molded from high-density cross-link polyethylene. It takes over an hour to mold a Tuffpak but it's worth it! The Tuffpak comes with 2" of foam in the lid and base to protect your valuable equipment. The model number of each case will indicate its size. The first 2 numbers represent the diameter of the case at its smallest point (where the handles are). Since the case is a polygon, there may be areas that are larger. The second 2 numbers in the model number represent the minimum length (in inches) of the tripod you'll want to put in the case. Since the lid is held in place with an adjustable strap, you can secure the lid with a tripod roughly 5 inches longer than the length indicated by the model number.
The foam in the lid is glued in place. The foam in the base (which is protected from the feet of your tripod by a circular plastic disk) is held in place by detents which have been molded into the base of each case. Key locks can be added as an accessory. The rotational molding process used to form every Tuffpak enables us to produce an extremely durable lightweight case that can withstand even the roughest baggage handlers for a lifetime. Just how tough are rotationally molded products? Well, some products you've probably seen include, gas cans, the big yellow crash barrels found on most of our nations freeways, water tanks, toys, dumpster lids and many other items where durability is mandatory.
Every corner in a Tuffpak has 20% more material than the sidewalls. All of this yields a case so "tuff" that Nalpak stands behind every one of them with their "Guaranteed For Life" guarantee. Tuffpak is resistant to: jet fuel, solvents, moisture, dents, abrasions, shock, cold to -40 degree F and heat to +140 degree F. Some Tuffpak models come equipped with wheels which are permanently attached and protected by "fenders" that are molded into the bottom of the case. No need to remove them (and possibly lose them) or find a place for them in your other bags. The wheels along with the pull handle on the lid make it a snap to move even a heavy load.