Upper Bounce Mini Trampoline Replacement Jumping Mat 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 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 Springs not included,fits for 40 Inch Round Mini Trampoline Frames UV-resistant, Water and Fade Resistant Mat Made in USA