Traditional tug of war ropes provide a fun and exciting gross motor activity for all ages and sizes. Features Long wearing 'Unmanila' is a moisture resistant polypropylene 1' diameter rope Look and feel of natural fibers, but stronger and lighter than manila Tensile strength 12,600 lb. Great for continuous outdoor use Firmly woven 5' circumference loop at each end large enough for any anchorman, but small enough for children too! Do not exceed 12 tensile strength when using tug of war ropes. Inspect before each use.