Acu Massage Bar PurpleDeep Tissue Trigger Point Massager applies deep and constant pressure on trigger points and releases painful muscle knots. The unique double curve design of the flexible bar ensures that you can use leverage to increase and decrease pressures. This allows for safe, comfortable and customized massage for hard to reach areas such as the mid and lower back. Also great for the neck, shoulders, thighs, calves, feet, arms and buttocks.