Part Number

Description

Rope Diameter

Weight

USR-PFB-A

Fixed Side Aluminum Pulley

Up to 3/8"

3.3 oz.

USR-PMS-A

Aluminum Micro Pulley

Up to 1/2"

4.2 oz.

USR-PSW-A

Rope Pulley

Up to 9/16"

8.6 oz.

USR-PTW-A

Swing Side Pulley (twin wheels)

Up to 9/16"

14.9 oz.

USR-FB-SR

Fiddle Block Set w/rope

1/2"

N/A

USR-FB-S

Fiddle Block Set wo/rope

1/2"

N/A