The G5 AP223 Two Ball Firm Rubber Applicator is similar to AP216 Four Ball Applicator, but a bit narrower in order to better fit over the cervicals and is well suited to straddle the spinal column when working up and down the back. It is perfect for manipulation of smaller joints since the balls can be worked into soft tissue while the oval backing plate ir recessed enough to ride over intervening bony structures. 

Buy with confidence from an authorized G5 Distributor.