50pcs Copper Square Shaft Nails Timber Boats/Tree Stump Killer 25mm 100% Brand New Ideal for timber boats or Tree stump Killer To kill tree stumps nail around base of stump 50 pieces in pack 25mm length copper nails square shaft 1.65mm square shaft 5mm diameter Head Specification Product type: Square Shaft Nails Material: Copper Length: 25mm Shaft diameter: 1.65mm Heas diameter: 5mm Package included: 50pcs Copper Square Shaft Nails