Draft blockers are used to block the drafts between dock seals and dock levelers. The compressible foam is seals leaks and drafts in all types of irregular gaps. Dock seal draft blockers have handles for easily removing them. They have a air vent that releases the air and the bag will return to it's original shape. They have grommets to tie a rope if wanted. They are filled with foam for that allows them to compress.
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