300Pcs Self Stick Insulation Pins 2-1/2Inch, 1.5 Inch Self Locking Washers round

Easy to use: simply nail the base of the insulating nail to the ceiling or wall and pierce the fiberglass panel into the nail; To ensure stability, there must be at least 1 nail in each corner, then push the washer onto the nail to secure the panel in place, and the whole process takes no more than a few minutes to stabilize the item nicely.

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