89 Series
Unlocking is by pushing or pulling the activation button or the ring, with a one-piece body of dichromate zinc plated steel.
Characteristics: The balls can be unlocked by pushing the activation button or by pulling the ring. The one-piece body is made of dichromate zinc-plated steel.
Sizes: standard body diameters range from 1/4 to 5/8 inch. The standard lengths range from 0.3 to 4 inches depending on the diameter.