Inclusion Criteria:  1) Age 18 and above.  (2) Experienced an ischaemic or haemorrhagic stroke more than 6 months ago.  (3) Arm weakness interfering with activities of daily living.  (4) Fugl-Meyer score of upper limb<45.  (5) Caregiver is willing to assist with trial by helping to deliver intervention.  (6) Cognitive and language abilities to understand and participate in the study protocol.  (7) Can maintain sitting with or without support for 1 hour continuously.  (8) Able to give consent and understand instructions.  Exclusion criteria:  Cognitive impairment that would interfere with their ability to comply with the experimental protocol or provide informed consent; Dermatological, rheumatologic or orthopaedic illnesses of the affected arm interfering with movement of the elbow; Pre-existing severe systemic disorders like cardiovascular disease; active cancer or renal disease; end stage pulmonary or cardiovascular disease; psychiatric illness including severe alcohol or drug abuse Inability to perform the baseline assessments; Severe tactile hypersensitivity; Participation in other, upper limb rehabilitation studies Within 12 weeks of receiving Botulinum toxin injections; History of epilepsy Pace maker or any other implanted devices Pregnancy Severe dystonia/spasm