They are not a friction folder but not quite a slip-joint either. They do not lock. The Standard Sharpy is the same size as a Sharpie marker/pen
OAL - 9" Flipper
Blade - 3.6" CPM154 rides on Nylatron washers.
Handle - 5.5" Titanium Chassis and pocket clip. Carbon Fibers Scales.
Weight - 1.5 oz
Source - Like New from Private Collection
Made in USA
Comes in a padded case