Tank adapters for Transformers Soundwave (Studios Series 83 Bumblebee Movie). This upgrade kit helps Soundwave transforming into tank mode. They can be kept on Soundwave on the robot mode.
If you need other upgrade kits for Soundwave, please check these listings:
1. Leg Gap Fillers:
https://www.ebay.com/itm/154783421187
2.Tank Adapter Upgrade Kit:
https://www.ebay.com/itm/154782505579
3. Cannon/Missile:
https://www.ebay.com/itm/154796482576
4. Sword + Mount Upgrade Kit:
https://www.ebay.com/itm/154796490333
5. Missile effects for Ravage:
https://www.ebay.com/itm/154827192512