The Vevor seam setter is designed for countertop, wall tile, and slab seam joining and leveling with precise multi-angle adjustment. Each unit uses a 6-inch nitrile rubber suction cup with up to 440 lbs of vertical suction for a secure hold on smooth materials such as marble, tile, ceramic, and glass. Three fine-tuning knobs allow easy adjustment of seam width and surface height for accurate alignment. Durable stainless steel and aluminum construction helps it stand up to repeated jobsite use. A 600D Oxford cloth bag and helpful accessories are included for transport, maintenance, and setup.