Shock absorber (Damper). Rubber finger 42*147mm 28*170mm, 32*190mm for seed drills and kilts, Zhytomyr Region.

Rubber damper - shock-absorbing finger (gummi cord) with a diameter of 42 mm and a length of 147 mm, is used in working nodesseeders and tillage equipment for protection during collisions with obstacles and absorption of vibrations.
Material: strong rubber compound, resistant to abrasive wear and moisture(//tractor-service.com)
Protects mechanismssections of the planter during impact with an obstacle
Resistant to vibration and aggressive soil and field conditions.
In general, a damper is an important element for achieving high accuracy and productivity of modern sowing.