ive a backache my back muscles are weak ive tried so many things doctors medicines massages this massager is the best of all i do it for 5 minutes and for a whole week i have a back with no pain great if u have a backache too you should try this sure u will see how good it works i had bought one before nearly 7-8 years and i wanna buy a new one nowadays but cant find anywhere if anyone knows where can i buy please tell me here it says it isnt in stock...