Thick steel pipe, high quality stainless steel frame has a longer service life, ABS industrial and plastic wrap, anti-drop wear. Spring inner buckle / T-type adapter, mother-child ring type double spring inner buckle T-type adapter, high fit, through-type screw, stable and not loose. High-quality foam / soft and comfortable sweat-absorbent anti-slip, ergonomic design, comfortable grip, deodorant and environmental protection, long-term grip, avoiding blisters from both hands.