We will send the product according to the content of the first picture. Please refer to the description for details. *Your Package List: 1 x Cylinder; 1 x Piston; 2 x Piston Circle; 2 x Piston Ring; 1 x Piston Pin; 2 x Oil Seal; 1 x Bearing. Excellent lightweight high silicon aluminum alloy, featuring strong thermal diffusion ability*Come with good thermal fit to the piston and reduce the weight of the whole machine, thermal conductivity is increased by 42%*The cylinder piston kit produced with one-piece forming, increase the strength of the machine body and improve the surface hardness*Greatly improved wear resistance, corrosion resistance and high temperature impact resistance, sturdy and stableAfter-sales service: If you are not satisfied with our products or have any questions, please feel free to contact us. We would find a satisfactory solution to all your problems.