The Notch Hard Coated Rigging Thimble is a durable aluminum rigging ring designed for smooth rope movement in arborist systems. Each thimble is milled from aluminum, hard coat anodized, and polished to reduce friction and improve wear resistance. Available in Medium, Large, and XL sizes, the thimbles support rope diameters up to 14 mm, 20 mm, and 28 mm respectively. Made in the USA.