The ScopLevel Rifle Scope Leveling Tool is a sleek black plastic device designed to prevent canting when shooting rifles. This anti-canting device features a low ring height and a 1-inch tube diameter, making it compatible with most rifle scopes. The ScopLevel tool is easy to install and works to enhance your shooting experience by ensuring a more accurate and consistent shot. Made by ScopLevel in the United States, this scope leveling tool is a must-have accessory for any avid hunter or shooter looking to improve their aim.