Schaefer - Single Block/ Universal Head/ Snap Shac Cat. No. SCH50409 Weight 0.5 lbs	$150.75
Schaefer - Single Block/ Universal Head/ Snap Shackle  #504-09 Single Aluminum Block with Snap Shackle.     * White Delrin Sheave.     * Quick release snap shackle attaches almost anywhere. Dimensions: Imperial & Metric Length: 4 7/8" 124 mm Width: 2 1/8" 54 mm Overall Thickness: 15/16" 24 mm Weight: 5.4 oz. 153 g.