1. Professional Mitered Joint Clamp: This 45degree stone miter clamp allows you to assemble two 45degree mitered workpieces at a 90degree angle to each other. The metal alloy construction provides stability when working with artificial and natural tiles for seamless connections. 2. Precise Alignment Mechanism: The bracket features white rubber work surfaces that support the underside of wider stone pieces, while the design fits snugly against the 90degree inner corner, creating flawless countertop seams. 3. Adjustable Pressure System: Two lever clamps can be adjusted to your workpiece height using the spring mechanism. The screws allow you to apply appropriate clamping force for bonding results without damaging materials. 4. Versatile Application: This seam splicing device works with both artificial and natural tile materials. With clamping heights of 150 mm/325 mm, it accommodates various thickness options for different countertop and table projects.