All of the Kenworth models shown are HO scale, labeled as 1:87 (HO) scale in the listings.
Most models are made from plastic or metal. Several diecast listings note a mix of diecast metal bodies with plastic parts and details.
Individual HO tractors typically measure about 2.5 to 4.125 inches long. Sets that include trailers can reach roughly 10 inches in total length.
Most listings show a suggested age of 14 years and up, while at least one set is labeled for 8 years and up.
Diecast sets often list features such as real rubber tires, detailed cab interiors, rolling wheels, chrome exhaust stacks and tanks, simulated wood-deck trailer finishes, and moving excavator parts (rotating body and a movable boom).
Package quantities vary: listings show single-item packs as well as multi-item sets. Across the results, package quantities of 1, 2, and 3 are noted.
Some sets are designed so the truck and trailer can be joined or disconnected. The excavator can be displayed separately or placed on the trailer, and its moving parts (such as a rotating body and movable boom) are noted in several listings.
