Key benefits Securely holds and aligns two plates for a flush, seamless join — no clamps or temporary adhesives required. Fast, repeatable setup using a piston pump and adjustable knobs for precise seam alignment and leveling. Simple controls let a single person position, compress, and level panels with consistent results. What the tool does (core functions) Left suction cup is fixed to the left plate; right suction cup is movable and attaches to the right plate. A piston pump creates a strong vacuum to hold the cups in place. A side knob compresses the seam for a smooth, seamless appearance. A top knob and visible blue head let you fine‑level the plates so edges meet evenly. Key features Fixed left suction cup and adjustable right suction cup for controlled joining of two plates. Piston pump for rapid vacuum attachment and reliable holding force. Side knob (turn counterclockwise to compress the seam) for aligning edges into a seamless join. Top knob with visible blue head for leveling; turn top knob clockwise to raise the lower plate until both are level. Designed so usually only one top knob is required; a second top knob can be used when extra reach or extension is needed. How to use (concise steps) 1. Place the fixed (left) suction cup on the left plate and the movable (right) suction cup on the right plate. 2. Pump the piston until the suction cups are fully secured. 3. To connect the seam, turn the side knob counterclockwise until the joint looks seamless. 4. To level the plates, position one blue head under the top knob on the higher side of the seam, then turn the top knob clockwise until the plates are level. Normally only one top knob is required; use two top knobs if you need additional extension. Practical applications Glass installation: Hold and align glass panels for windows, doors, or shower enclosures while creating a flush seam. Countertops and solid surfaces: Secure and level adjacent stone or laminate panels during installation to achieve an even joint. Metal or composite panels: Position and compress seams on façades or interior paneling for a smooth finished appearance. Compatibility and performance notes Intended to join and level two adjacent plates or panels using left/right placement of suction cups. Pumped suction cups provide quick attachment; knobs allow controlled compression and fine leveling. Use one top knob for most leveling needs; add the second top knob when a larger adjustment or extension is required. Tips for best results Ensure both plate contact surfaces are clean and dry before attaching suction cups. Pump until the cups feel firmly seated before making seam adjustments. Turn the side knob slowly to check seam appearance; use the top knob to correct any vertical misalignment. This tool provides a controlled, single‑operator method to hold, compress, and level two plates for a flush, professional join.