... It can be adjusted freely to a satisfying blocking angle.3) There is manual and electric control.4) Excellent price ... made of aluminium,with steel square pipe.Size:1)3×1.5M, 3×2M, 3×2.5M2)4×1.5M, 4×2M, ... 4×2.5M, 4×3M, 4×3.5M3)5×1.5M, 5×2M, 5×2.5M, 5 ... ×3M, 5×3.5M, 5×4M4)6×1.5M, 6×2M, 6×2 ... .5M, 6×3M, 6×3.5M, 6×4MPacking:We have several kinds of packaging materials ...