1. Full double ball raceway.
2. Swivel top plate.
3. Greasing nozzle fitting in raceway.
4. Revised king ping.
5. Bright zinc plating.
1. Top plate size: 4" x 4-1/2". 2. Available wheel size: 5" x 2", 6" x 2", 8" x 2". 3. Zinc plated caster fork.