Write an article based on this "Lay the 2 pieces of granite side-by-side. Thread turnbuckles through 2-3 pairs of suction cups. Stick each pair of suction cups on either side of the granite seam."
Place the 2 edges that you’re going to seam together in close proximity—roughly 1–2 in (2.5–5.1 cm) apart. This will give you enough space to apply the 2-part epoxy to the edges, but also make it easier to squeeze the pieces together quickly. This also gives you the opportunity to take one more look at how well the 2 pieces match up. Buy a kit with rubber suction cups and metal turnbuckles (which look like very long bolts) that are intended for clamping countertop seams. For each pair of suction cups, thread a turnbuckle through the openings in the top by turning it clockwise. You want the suction cups to be spaced about 4–6 in (10–15 cm) apart on the turnbuckle so you’ll have room to work between and beneath them.  2 pairs of suction cups and 2 turnbuckles should be sufficient for most countertop seams, but you can use 3 or more for longer seams. You can also buy or rent a tool known as a “seam puller” or “seam setter” that uses vacuum pumps to pull and hold the granite pieces together. If you choose one of these, follow the instructions for proper use. Think of it as placing 2 or 3 “bridges” over the seam, with each turnbuckle serving as the bridge span and the suction cups as the bridge piers. Try to space the suction cups an equal distance from the seam—roughly 2–3 in (5.1–7.6 cm) each.  Make sure the suction cups stick well to the granite. Try moistening the underside of each cup with a damp fingertip if needed. After you apply the 2-part epoxy to the seam, you’ll tighten the turnbuckles to pull the pieces of granite tightly together.