8" Rig (Rigid)- Top plate 4-1/2" X 6-5/16"

3-1/2" Rig (Swivel)- Hollow kingpin rig that hold 3-1/2" wheel; 5/8" hollow kingpin

6" Rig (Swivel)- Swivel rig with top plate of 4" X 4-1/2"

6" Rig (Rigid)- Heavy duty 6" rigid rig with top plate of 5" X 6-1/2"

4" Rig (Swivel)- Swivel rig that holds 4" wheel with a top plate of 4" X 5-1/8"

6" Rig (Swivel)- Drop forged steel heavy duty rig that holds a 6" wheel with a top plate of 4-1/2" X 6-1/4"

5" Rig (Swivel)- Swivel rig that holds a 5" wheel with a top plate of 4-1/2" X 6-7/32"

5" Rig (Swivel)- Swivel rig that holds a 5" wheel with a 4 position lock feature; top plate of 5" X 5-1/2"

8" Rig (Swivel)- Swivel heavy duty rig that holds a 8" wheel with a top plate of 5" X 6-1/2"

8" Rig (Rigid)- Rigid heavy duty rig that holds a 8" wheel with a top plate of 5" X 6-1/2

10" Rig (Swivel)- Swivel heavy duty rig that holds a 10" wheel with a top plate of 5" X 6-1/2"

10" Rig (Rigid)- Rigid heavy duty rig that holds a 10" wheel with a top plate of 5-1/4" X 7-1/4"

12" Rig (Swivel)- Swivel heavy duty rig that holds a 12" wheel with a top plate 5-1/4" X 7-1/4"

12" Rig (Rigid)- Rigid heavy duty rig that holds a 12" wheel with a top plate of 5-1/4" X 7-1/4"

3" Rig (Swivel)- 3" Swivel rig with a 3/4" pipe plug stem

5" Rig (Swivel)- Swivel rig that holds a 5" wheel with a top plate of 4" X 4-1/2"

6" Rig (Swivel)- Swivel rig that holds a 6" wheel with a top plate of 2-1/2" X 3-5/8"

6" Rig (Rigid)- Rigid rig that holds 6" wheel with a top plate of 2-1/2" X 3-5/8"

8" Rig (Rigid) - Rigid rig that holds an 8" wheel with a top plate of 4-1/2" X 6-1/4

5" Rig (Swivel) - Swivel rig that holds a 5" wheel with a 1/2-13" stem with a length of 2-1/2"; Complete with a total lock feature

8" Rig (Swivel)- Swivel hot forged rig that holds an 8" wheel with a top plate of 4-1/2" X 6-3/8"

6" Rig (Swivel)- Swivel hot forged rig that holds a 6" wheel with a top plate of 4-1/2" X 6-3/8"

3" Rig (Swivel)- Swivel rig that holds a 3" wheel with a top plate of 2-1/2" X 3-5/8"

5" Rig (Rigid) - Rigid rig that holds a 5" wheel with a top plate of 4" X 5"

5" Rig (Swivel)- Swivel rig with a 7/16-14" threaded stem; Stem legnth of 2-1/8"

2-1/2" Rig (Rigid)- Rigid rig that holds a 2-1/2" wheel with a top plate of 2-1/2" X 3-5/8"

3-1/2" Rig (Rigid)- Rigid rig that holds a 3-1/2" wheel with a top plate of 2-1/2" X 3-5/8"

4" Rig (Rigid)- Rigid rig that holds a 4" wheel with a top plate of 2-1/2" X 3-5/8"

4" Rig (Rigid)- Rigid rig that holds a 4" wheel with a top plate of 4 X 4-1/2"

6" Rig (Swivel)- Swivel stainless steel rig that holds a 6" wheel and has a top plate of 4-1/2" X 3-7/8"

8" Rig (Swivel)- Swivel kingpinless rig that holds an 8" wheel with a top plate of 5-1/4" X 7-1/4"

4" Rig (Swivel)- Swivel rig that holds a 4 " wheel with a top plate of 2-3/8" X 3-5/8"

4" Rig (Swivel)- Swivel rig that holds a 4" wheel with a top plate of 2-3/8" X 3-5/8" complete with brake

5" Rig (Swivel)- Swivel hollow kingpin rig that holds a 5" wheel complete with a directional lock feature

3" Rig (Swivel)- Swivel chrome rig that holds a 3" wheel with a top plate of 2-7/8" X 3-5/8"

4" Rig (Rigid)- Rigid chrome rig that holds a 4" wheel with a top plate of 2-15/16" X 4-1/8"

10" Rig (Rigid)- Rigid rig that holds a 10" X 2-1/2" wheel with a top plate of 4-1/2" X 6-5/16"

5" Rig (Rigid)- Rigid rig that holds a 5" wheel with a top plate of 2-1/2" X 3-5/8"

8" Rig (Swivel)- Swivel kingpinless rig that holds a 8" wheel with a top plate of 4-1/2" X 6-1/4"

3" Rig (Rigid)- Rigid rig that holds a 3" wheel with a top plate of 2-3/8" X 3-5/8"

5" Rig (Swivel)- Swivel rig that holds a 5" wheel with a top plate of 2-1/2" X 3-5/8"

6" Rig (Rigid)- Rigid rig that holds a 4" wheel with a top plate of 4" X 4-1/2"

5" Rig (Swivel) - with a 4" x 4-1/2" top plate