This 12 ft. Trampoline with Enclosure drops from $349.99 to $199.99 to $179.99 using the code KMART10PSAVINGS at Kmart.com. Shipping starts at $84.42 or choose free in-store pickup. This is the best shipped price we could find on similar 12' foot trampolines by $17 or $101.42 with the in-store pickup. It has a heavy-duty steel frame, a weatherproof jumping mat, padding-covered springs and a safety net. Sales tax is charged in most states.