Description: Window Balance Channel Block & Tackle for Non-Tilt Windows Set-up: Includes balance channel, shoe, and top. Measures: The metal channel's width is 9/16", but is considered 1/2" in the trade Category: Window Channel Block and Tackle Balance Material: Aluminum (Plastic Balance Shoes and Tops) Usage: Used On Single Or Double Hung Windows To Counter Sash Weight Number: 2930
