The Tamiya 70142 Ladder-Chain & Sprocket Set comes with an assortment of sprockets and 96 cm of chain for use with other Tamiya products. Along with the chain and four sprockets the set also includes two sprocket mounts and two crank arms to attach to the sprockets. A stand is included for mounting a gearbox high enough off of its mounting plate to make room for ladder-chain movement. Also included is a screw and nut set for mounting purposes.

Included:
Four sprockets of varying sizes and types
96 cm of chain
Two crank arms
Two sprocket mounts
One stand
One hubcap
Two 3 x 50 mm hex shafts
Six 3 x 20 mm screws
Six 3 x 10 mm screws
Two 3 x 21 mm tapping screws
Four 3 x 12 mm tapping screws
Four 3 x 8 mm tapping screws
Ten 3 mm nuts