Studio : CMI Publisher : CMI Product Description CMI's many years of expertise in pulley design and ascenders have come together to form the micro hauler. When used with another pulley this system will provide a 4:1 mechanical advantage. Works with 3/8"" to 1/2"" rope. Ideally suited for 7/16"" rope.[Weight Single: 190 grams[Weight Double: 235 grams 0
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