The EL20-S458 provides a super low mass titanium structure to minimize "F=MA" errors during the crash event. 

All exterior surfaces are smoothed to prevent snagging on dummy or air bag materials; smoothed exterior profiles protect your expensive crash test dummy from damage while eliminating drag and frictional error. The EL20-S458 is offered with optional ultra low mass slotted titanium axles and robust armoured cable exit from the device. 

The user-replaceable cable ensures that even if your cabling is damaged, replacement cables can be rapidly wired and your test facility remains in full operation at all times.