Waxay inta badan ka kooban tahay ka kooban tuubbada la jeexjeexay, gacmaha saafiga ah iyo wadajirka. The inner tube is a thin walled stainless stell corrugated pipe with a spiral or annular shape, and the outer layer of the corrugaed pipe is made of stainless steel wire of steel tape. Jidhka iyo jajabinta labada daraf ee tuubada tuubada ayaa la istaagay ku rakiban iyo boodhadhka biibiilaha macaamiisha.