Which stringing machines have the heavy-duty stainless steel swivel clamps?
| 社名 | ストリンギングマシーンモデル名 |
| Babolat: | Optional tool for Star II, Star 3, Star 4 |
| Maxline: | Eagnas Smart 707, Smart 808, Smart 850, Smart 909, Smart 3000, Smart 4000, Smart 5000, Smart 6000 |
