𝑾𝒉𝒚 𝘂𝗽𝗴𝗿𝗮𝗱𝗲 𝗮𝗰𝗰𝗲𝘀𝘀𝗼𝗿𝗶𝗲𝘀? In our survey back to seam setter users and enthusiasts, we found that the wear and tear of the air pump is the biggest nuisance in long term and frequent use, resulting in the seam setter not working properly. Unable to find a suitable replacement air pump, had to be repurchased seam setter .Therefore, the upgrade kit comes with extra replacement air pumps, which greatly extend the service life of the seam machine, lifetime enjoyment! 【Upgrade Kit】Seam setter kit includes 2 x 6 inch professional seam setters, 1 x Torpedo Level, 2 x extra replacement air pumps, 1 x Tool Bag, 4 x Hex Wrench, 2 x Open Wrench, 2 x Anti-Static Dust Cloth, 4 x Protective Cup Cover. Special anti-static and anti-dust wiping cloth. Before use seam setter for countertop joining leveling , simply wipe the suction cups and table tops, so seam setter of suction cup force is more stable and firm, making the work easier 【Free Adjustment】Seamless seam setter includes table height adjustment knob and table spacing adjustment knob, with a total of 3 adjustment buttons, 1 side knob for adjusting the distance between the seams of the table tops and 2 table height adjustment knobs with leveling top knobs to easily adjust the table tops to the same or any suitable horizontal height position.For more precise and perfect results, use the torpedo level included in the seamless seam setter kit for precise adjustment 【Durable Suction】Seam setter with 6 " suction cup , can withstand a maximum vertical suction force of 550lbs. Suction cup of seam setter is made of natural thickened rubber, which is more durable. Gap Regulator for joining leveling is suitable for marble, stone, floor tiles, ceramic tiles, glass and other smooth flat materials. Seam Setter of Countertop performs well on every smooth surfaces,is your indispensable good helper 【High Quality】Compared with the single bar seam setter , Double bar seamless seam setter uses high quality stainless steel slides design, stronger and more durable. All aluminum knob rust-proof and wear-resistant, suction cup with professional dust proof housing to reduce the effect of job site dust on suction cup suction. Make the suction cup of the seam joiner take long-term suction 【Hassle-free Shopping】We provide after-sales service, if you have any questions, please feel free to consult us. If there is any problem with the product, we will refund the full amount or replace it with a new one! Please don't worry A Pair Twin Pole of Seamless Seam Setter with 6 inch Suction Cups, Countertop Jointers, Jointing Suction Cups, Marble Slab Tools, Gap Adjusters for Granite, Stone, Glass, Tile (2 Pieces)