Check the listing for details. Gemtor SBA-182 Adjustable Sliding Beam Anchor 12" - 18". Condition: New – Open box, Made in Unknown. Listed at 196.00 USD. Gemtor SBA-182 Adjustable Sliding Beam Anchor 12" - 18" Brand: Gemtor Model: #SBA-182 Sliding Beam Anchor ---Range - 12" - 18" Width, 2-3/4" Thick ---Capacity - 310 lbs ---Material - Stainless Steel/Aluminum Features: Stainless steel and high-strength aluminum construction Installs in seconds without tools Mounts to top or bottom horizontal beam flange Unique design prevents snaphook gate from contacting edge of beam Follows a worker’s movement along an I-beam Stainless steel rollers allow anchor to glide along top of beam and last longer than nylon pads Lightweight yet extremely strong and durable SBA-182 - Quick-insert locking pin for size adjustment, fits beams from 12”-18” wide and up to 2 3/4” thick.