Check the listing for details. New Weed Wacker Trimmer Line Holder Adjustable Width (4.5"-8.6"), Supports.... Condition: New. Listed at 23.20 USD. Description: Weed Wacker Trimmer Line Holder / Line Spool Rack (Adjustable Width 4.65"-9.54"). For Landscape Trailer Organization Accessories - Supports 3 & 5 Pound Spools: This weed wacker line holder is designed to organize and store your trimmer line spools, making it easier to access and use them while working in your landscape trailer. It is adjustable in width to fit different sizes of spools, and can hold up to three or five pounds of line. UNIVERSAL: The mower rack for trailers can be mounted on any type of trailer or in any position, it is solidly constructed to withstand the weight of the mower spool, making it a reliable and durable gardening tool accessory. Constructed of heavy-duty steel, this trimmer rack includes all necessary mounting hardware for quick and easy install.