The Ground Base Jammer is conducive to athletic applications that require ground-based explosiveness. Ground Base equipment is designed to keep the exerciser firmly planted on the ground while maximizing power and explosiveness from the feet up. Advantage: 1.Adopts 50*80mm rectangular pipe and Q195 steel pipe with a wall thickness of 2.5mm as the main frame;  2.Rotation fulcrum: It is pressed by bearing steel with wear-resistant and uniform hardness, which makes the product run lightly; 3.Cushion: The cushion and backrest foam are made of high-density recycled foam, with a thickness of 30MM and a density of 170KG/m; the board is made of high-density board, with a thickness of 18MM and a density of 650KG/m3; plus high-quality pvc material leather processing, cushion adjustment Convenient and fast, high safety; 4.Counterweight: use flat steel counterweight pieces, each weighing 5kg;  5.Spraying: Special powder electrostatic spraying treatment for fitness equipment, which is firmly combined with the base material and has strong anti-corrosion ability; 6.Steel wire rope: 7""x19"" high-strength steel wire rope for aviation, with a diameter of 5.6MM, covered with PVC material, and has undergone 100,000 tensile tests; 7.Pulleys: high-quality nylon pulleys