Snap-in design fits standard teardrop pallet rack uprights for fast, tool-free installation Heavy-duty unibody construction built to last in high-traffic warehouse environments Secure 3L gripper channel holds signs up to 3/32 inch thick without tearing or slipping Ideal for labeling aisles, safety zones, inventory sections, or storage areas Easily swap out signs in seconds to update rack labeling or reconfigure layouts Compact size 3/4 x 3 inches provides a clean, professional look for warehouse signage Available in 5, 20, or 100 packs for small, medium, or large facility needs Pallet rack sign holders in a convenient pack of 20. Fits in the teardrop holes on most pallet rack uprights. Simply snap the hooks on the back of the holder into place and insert a sign of your choosing. This holder allows you to set up aisle markers, numbers, etc. in warehouse racking. Signs will stay securly in place and the signs can be easily switched out at will.