★XL Size 60.5mm L=250mm ★M Size 43mm L=185mm Product Steel Rolval plating Due to rising prices of materials, solvents, and shipping, we appreciate your understanding. This is a very smart, simple, and convenient item that allows one person to support the rope during rigging by adjusting the number of wraps to control friction, eliminating the need for troublesome methods such as wrapping the rope around tree trunks, having multiple people support the rope, or using multiple pulleys and carabiners to increase resistance. Please use this item after thoroughly understanding how to use it. Please be aware that the user is responsible for any accidents that may occur after use. Also sold elsewhere.