This high quality Fock Scotland shackle with swivel shackle is made from stainless steel AISI 316 is equivalent to V4 A (resistant to salt water and UV light) and is completely rustproof.360 degree swivel. Dimensions: Length: 93 mm Width: 45 mm/interior diameter of the Fock Scotland shackle: 13 mm Opening of the swirl Schäkels: 13 mm Inner Diameter of the ball Schäkels: 15 x 13 mm, breaking load: 3000 kg