Ma roller opangidwa ndi 3D amayesa 10 * 30cm/14 * 33cm/14 * 45cm/14 * 60cm okhala ndi magawo atatu kutikita minofu kutengera zala, zala zazikulu, ndi zikhato za dzanja la munthu.Amapanga kukakamizidwa kuti atulutse mfundo zoyambitsa ndikumasula mfundo mu minofu ndikusintha kusinthasintha kwathunthu, makamaka m'malo olimba kwambiri monga kumbuyo, ng'ombe, IT band, hamstrings, lats, ndi glutes.