High-quality materials: the gun body is made of thick, high-quality stainless steel. It's wear-resistant, impact-resistant, high-strength and prolongs service life. Super suction power: the new high-quality rubber plunger is perfectly matched to the stainless steel gun body, giving the mortar syringe low resistance and high suction power, making it easier to suck up cement. New design: newly designed round nozzle, nozzle diameter can be cut to 9-14 mm, can also be replaced to suit your different needs. Particularly suitable for grouting floor tiles. Size and applicationGun body: 660 x 140 mm, round nozzle: 9-20 mm, flat nozzle: 58 x 14 mm, large flat nozzle: 52 x 19 mm. Suitable for ordinary mortar, epoxy resin, etc. Good service If you have any questions about our products, please feel free to contact us at any time, and our after-sales team will do our best to help you solve the problem. This is a new high-end stainless steel caulking gun. It is made of "automotive piston theory", which gives it the characteristics of high suction, high working efficiency, easy operation and durability. Practical tips 1, if the proportion of sand and cement is incorrect, it will cause strain. At this stage, the proportion of sand should be reduced. 2, it is more economical to extract the cement at a 45 angle than to extract it vertically. 3, When cleaning, remove the handle and nozzle before the cement is dry and soak it in water for 10 minutes. They require a few drops of oil after cleaning and pull the handle for easy re-use.