Combo includes 3 new and sealed parts in its box: 1x CAT 775E Dump Truck (1:64 Scale) 1x CAT 320F L Excavator (1:64 Scale) 1x CAT CB-13 Vibratory Roller (1:64 Scale) *RESTRICTIONS APPLY Caterpillar Models they are not sold per unit. Combos are not interchangeable.