Haisstronica 350Pcs Solder Seal Wire Connectors Kit,26-10 Gauge, 4Colors/4Size Product Details Durable: Haisstronica waterproof connectors are made of high-quality materials that are resistant to corrosion, rust, and wear, making them long-lasting and suitable for use in harsh environments. Haisstronica's solder seal wire connectors have an exclusive design with high-purity, thick solder rings that create durable and reliable connections when heated. Impeccable Quality:Made of high-quality hot melt adhesive material which will melt the rich adhesives and wrap the solder wire connectors to form a seal when being heated,the solder seal connectors ensure moisture resistance and strength for durable wire connection in wet conditions. With its EVA materials,the heat-shrink tube of solder seal wire connectors provide clear visibility of the soldering penetration and premium abrasion resistance for long-term reliability. We are committed to the quality of our products and offer a 30-day money-back guarantee and 12-month replacement warranty,ensuring 100% customer satisfaction. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.