Diecast Masters 28001 1/20 Scale RTR RC CAT 330D Excavator Flatcar - Centerbeam The dual O-ring lower shock

The dual O-ring lower shock cap acts as the upper spring retainer

Model may be assembled with either folded or extended wings

But as White notes

000 gallon metal tank perched on a metal flatcar-like underframe

In Aeronautics

Diecast Masters 28001 1/20 Scale RTR RC CAT 330D Excavator Flatcar - Centerbeam The dual O-ring lower shockDiecast Masters 28001 1 20 Scale RTR RC CAT 330D Excavator Cat 330D L replica in 1: 20 scale radio control diecast metal. Place your hands on the realistically presented RC controls. You will instantly feel the power and precision that have made Caterpillar the world's largest and most respected name in earthmoving! Standing still or in motion, the new Diecast Masters RC model replicates the size and reach of the full size 330D L, at 1: 20 scale.