A high impingement torque locking ring bi-polar cup marker. The impingement torque of the MOONSTONE acetabular component has been measured to be 27.5 daN.m

Of stainless steel metal back and PE construction
Accepts 22.22mm and 28mm diameter femoral heads
11 size proportional build-up from 41 to 57
Even size implants from 40 to 56 in proportional build up of 2mm.

Locking ring forceps