This is a rock exotica Omni-Block Swivel Pulley, model "Omni1.5"-Single Sheave," which I imported directly from a US arborist supply distributor about 4 years ago. The purchase price was $109, excluding shipping and customs duties. After purchasing it, I used it 5 times and then stored it indoors. Since I will not be using it in the future, I would like to sell it to anyone who is interested. The specifications of this product are as follows: 〇 Sheave Diameter: 1.5" (38mm) 〇 Sheave: Single 〇 Rope Diameter: Φ13mm 〇 Sheave Material: Aluminum 〇 Available Color: Standard 〇 MBS: 36KN 〇 Certification: CE0120, EN12278