This sale is for:

- one 50" steel slide rail (Part #521H30ARL) (without blue dust caps in image)

- one slide block (Part #511H30B0).

DETAILS

- Smooth, quiet movement through patented insert molded recirculation paths and optimized geometries.

- Simple installation and greater accuracy high quality, heavy duty rails

- 500 Series Ball Carriage

- Profile Rail

- Size: 30 mm 

- High Precision Grade 

- B Style

- 0 Clearance Preload 

- Steel