Name:double line hooks 1.Use in square pipe beam . 2.Length:100,150,200,250,300,350MM 3.Weight:0.01KG Name:double line hooks use in square beam JT-B03 Details:1.Usually use in square pipe beam,hanging kinds of stuff.2.Length:100,150,200,250,300,350MM 3.Wire dia: 5.0MM / 6.0MM4.Surface treatment:powder coating 5.Kinds of size and surface treatment can be customized as your requirements.