From The Manufacturer
Double Wheel Kit, includes: (2) 8" ball bearing with offset wheels, (2) wheel bolts, (4) wheel bolt washers & (2) 3/8-16 flange nuts, for Economy Series

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| Manufacturer | Shortening Shuttle |
| Model Number | 01-SS-DWK |
| Weight | 6 lbs |
| Width | 8″ |
| Depth | 3.6″ |
| Height | 8″ |
| Type | wheel/wheel kit |