13 FT Jumping Mat fits for 13' x 13' Square Trampoline Frames with 84 V-Rings Using 7.5" springs (springs not included) Trampoline Frame size:Made for a 13 FT. x 13 FT. Square Trampoline (for your trampoline size: measure frame from one outside edge vertically and horizontally to the other outside edge, make sure to measure it both ways to confirm your size) Material:Heavy Duty Premium Polypropylene Mesh Material has 8 row stitching which provides extra security that prevents the mat from tearing and guaranteed to enjoy for many years! UV-resistant, Water & Fade Resistant Mat Made in USA Fits for Skywalker Model #'s STSC13BE, STSC13BC