◇【perfect 90-degree angle】:the Countertop Stone Seam Setter with 8inch suction cup is double rubber,hold long time suction ◇【Strong suction】:Great tool for seams on granite： hold seams tightly, keep suction ◇【Easy to Use】Press pump to make the stone seam setter works.With a height adjustment knob, pitch adjustment knob, and horizontal top button, this tool offers precise leveling and easy adjustment for perfect seams. ◇【Great tool for seams on granite】:professional countertop installation with this tool that can seamlessly splice two workpieces into a perfect 90-degree angle ◇◇【Warranty】IF you have any dissatisfaction after receiving our stone seam setter .pls contact us please feel free to contact us. We will replace it for you immediately HIGHTOP 90 Degree Stone Seam Setter with Suction Cup for Countertop Stone Granite Slab Seam Joining Leveling Stone Granite Slab