With safety feature, you rotate the push button 90° to lock into position. This prevents the push button from being disengaged by accident reducing the chance for injury and embarrassment.
Patented Guide Grooves to help provide simple pin engagement.
The pin is held 360° by 8 ball bearings which gives less wear on the plunger pin. Comes with two BD-SPP short plunger pins, four M6X25 screws and a tube of Loctite®.