... satisfying blocking angle.3) There is manual and electric control.4) Excellent price performance ratio.Material:1) The arm is made ... alloy wheel bar, high-strength nylon plastic with steel pull hook.4) The front pipe and the round pipe is made of ... ×1.5M, 3×2M, 3×2.5M2)4×1.5M, 4×2M, 4×2.5M, 4×3M, 4×3.5M3)5×1.5M, 5×2M ...