Waterproof security warranty void labels with unique sequential serial numbers for tamper-proof protection. Made from durable adhesive vinyl with a fragile destruct pattern that reveals VOID when removed. Precision printing ensures each label has an individual non-replicable code. Ideal for electronics, medical devices, and high-value equipment authentication. High-tack adhesive bonds permanently to most surfaces while leaving no residue upon proper removal. Matte finish with crisp laser-cut edges for professional appearance. Used by manufacturers, refurbishers, and warranty providers to prevent fraudulent returns. Customizable sizing available for bulk orders with instant sequential numbering.