heavy duty rock splitting wedge measures 0.61 x 4.13 inches (16 x 105mm), fitting perfectly into 5/8 inch diameter holes. The construction of each contains a center wedge, two shims and a rubber ring. High-Strength Steel: Our heavy duty rock splitting wedges are made from high-quality material with a high strength-to-weight ratio, which is rust and bend . This allows the wedges to be heavy enough to split large rocks efficiently while still maintaining the necessary maneuverability. Sharpening: blades are carefully sharpened to a precise angle, enabling them to penetrate rocks effectively and split them into smaller pieces. Whether you want to break the stone into small pieces for transport or cut the stone into special shapes, this is a useful tool. Versatility: Heavy duty rock splitting wedges can be used in a wide range of occasions, including construction, mining, demolition, and landscaping projects. This is easy to operate, even if you are using it . Wide Application: The stone splitter hand tool can be applied in splitting different stones, rocks, marbles, concretes, and so on. It makes splitting stones a simple task. Color: Black & Gray Material: Metal Package Contents: 12 Pack * Wedge and Shims Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.