Be sure to also watch the short video how to attach the Practice Bow
Step 1: Hold the Practice Bow in your right hand (similar to a fist) with your index finger and thumb opposite each other on the O rings.
Step 2: Holding the violin or viola in playing position, bring the Practice Bow to the string you wish to use. Center the O rings’ groove over the string and exert a downward push while twisting your wrist in a clock wise or counter-wise motion until the string slips up into the hidden groove beneath the O rings. This rotating motion is similar to the twisting a screwdriver.
Step 3: With bow attached, move your hand to a normal bow hold and begin bowing. To detach, grasp the O rings, twist and pull up on the sliding tube.