Viadana stanchion block that can mount up to a 1" tube and has a max line size of 5/16".

Specifications

• Sheave size - 28mm / 1 1/16"
• Max line size - 8mm / 5/16"
• Overall Height - 51mm / 2"
• Weight - 24 grams / .84 ounces
• Breaking Load - 750 kg / 1,653 lbs
• Max. Working Load - 150 kg / 330 lbs
• Comes with manufacturer two-year warranty