Vineyard cultivator: heavy duty disc harrow with special groups “stone jumper” for working in tough ground with strong weeds too. Frangizzolle a dischi ideale per vigneto con speciale sistema "stone jumper" per lavorare in terreni sassosi o erbosi. Eng: http://www.rinieri.com/en/79-Soil%20tilling/99-Cultivators%20&%20Harrows/165-FRM.html Ita: http://www.rinieri.com/en/79-Soil%20tilling/99-Cultivators%20&%20Harrows/165-FRM.html