Ahhh, the bliss of a good stretch. & this curved posture corrector does it, & more: lengthening your spine, creating space between the vertebrae, & helping to relieve the pain of bulging discs, sciatica & injury. Use sitting or lying down. It can save ££s on osteo & physio bills, & even improve years of poor posture. 10 magnetic dots & 96 massage points add to the therapeutic effect. 4x levels. W25 x D2 x L38cm. Not suitable for people with pacemakers.