Farqiga aasaasiga ah ee u dhexeeya tuubada hawo-mareenka iyo tuubada hawo-mareenka ah waa habka loo qeexay dhexroorka.Tuubbada waxaa lagu cabbiraa dhexroorka gudaha halka tuubada lagu cabbiro dhexroorka dibadda.Tusaale ahaan, 3/8" tuubada hawo-mareenka ah waxay leedahay dhexroor gudaha ah oo ah 3/8".