This product includes :

stainless steel round head screws 3*30-2PCS
stainless steel round head screws 3*20-2PCS
stainless steel round head screws 3*16-1PC
stainless steel flat head screws 3*12-4PCS
3*6*2 aluminum collars-4PCS

Product major function & usage:

stabilize the dampers and adjust the angle of the dampers

design with multiple holes to adjust the angles and height of the dampers suitable for different ways to play

fancy metallic mounts design to highly stabilized the dampers to do personalized adjustment