Schaefer - Aluminum Fat base/Single Block/ Delrin Sheave Cat. No. SCH50411 Weight 0.5 lbs	$71.00
Schaefer - Aluminum Fat base/Schaefer - Single Block Cheek/ Delrin Sheave  #504-11 is a 504 Series Single Sheave Cheek Block.     * Black anodized aluminum cheek.     * Ideal for up to 1/2" line.     * 2" diameter Delrin sheave.     * 1750lb. Safe Working Load. Dimensions: Imperial & Metric Length:  3 5/8" 92 mm