The super duty stand-off is a popular style for all glass mediums. Originally the super duty stand-offs were designed for the glassblower who can have larger heavier pieces with only one attachment point. The super duty stand-off has a streamlined design in which no screws are visible once the stand-off is placed into the bracket on the wall. This stand-off can have up to a 38mm surface area and a no flex bracket. Adhesive sold separately.