Iibka tooska ah ee warshadda, kubbadaha magnetic.Faa'iidada alaabtayada:
1. Marka la barbar dhigo alaab-qeybiyeyaal kale oo isticmaala N35 alaabta ceeriin, warshadeena waxay isticmaashaa darajada N38 si loo hubiyo magnetismka ugu awoodda badan.
2. Shan lakab oo rinji nano ah si loo hubiyo in dusha sare uu aad ugu adkeysanayo carruurta si ay u ciyaaraan.
3. Waxaan leenahay dhexroor kala duwan iyo midabada kubada, dhexroor 3mm iyo 5mm waa cabbirka caadiga ah, waxaan astaysto dhexroor kala duwan noocan oo kale ah kubada magnetic.