This is a reinforced disc that measures approximately 115mm in diameter, 3mm thick, and has a depressed center that measures approximately 22.23mm in diameter. It is designed for stone cutting and is meant to be used with 115mm angle grinders. The disc is reinforced for added strength and durability. It is suitable for a variety of stone cutting applications, such as cutting tiles, bricks, and concrete. It can be used in construction, landscaping, and other projects that require precise cuts in stone materials.