Many customers worry about easy damage during transportation. When we pack, we use two cartons to nesting, and two layers of them have thick sponge to hold the diode.When delivered to the customer's hands are 100% intact. IMPORTANT NOTE: The Shipping fee shown on the product detail page is just a rough count by the system due to the large packing size, and it's NOT the Precise Shipping Cost. Please contact us to get the accurate shipping fee for this product