This is the Large Clip Clamp with Ball Head Shoe Mount from Impact. It clamps onto bars up to 1.6" in diameter. The clamp has a 5/8" male stud and a 3/8" female socket. The attached mini ball head features a shoe mount, which can be used to hold a flash or other shoe mountable accessory.
| Thread Size |
5/8" male 3/8" female |
| Clamping Width | Clamps onto bars up to 1.6" (40 mm) in diameter |
| Mount | Shoe mount |