Square Trampoline Mat for Skywalker 13x13 Fits 13-ft x 13-ft Square Frame Mat Size:11-ft x 11-ft with 84 Rings(7" or 7.5" Springs) Mat Material Made in USA- All mats are weatherproof, UV resistant, and high quality. Trampoline Springs are SOLD separately. 6 rows of stitchingto secure v-rings in place.