Ball bearing swivel have lower friction and higher working loads than non ball bearing versions. Used in conjunction with blocks and rigging systems to provide articulation and rotation. Not suitable for high speed rotating applications. Swivels are used in conjunction with blocks, and rigging systems to provide articulation and rotation, (not suitable for high speed rotating applications). Ball bearing swivels have lower friction and higher working loads than non-ball bearing versions. Grade 316 stainless steel. 3740 lbs uniformly distributed load breaking load. 3/8" Jaw width. 1/4" Pin diameter. 2-3/32" Length.