Here Lizzie Ball explains how to adjust your Kun shoulder rest; written instructions follow. https://youtu.be/-B4jgnyAasY Kun rests adjust in three directions.
To adjust the height of your shoulder rest, simply turn the screws in the T-shaped fork members. Be sure to leave adequate clearance between the lateral adjusting mechanism and the back of your instrument.
If you want to raise your shoulder rest higher than these screws allow, try switching to the ‘extra-long screw.’ To use it, remove the shorter of the two standard screws and put it aside. Move the longer screw to the wide end of the shoulder rest. Then insert the extra-long screw in the narrow end of the shoulder rest. Extra-long screws are available as spare parts; to find one, contact your local Kun supplier. If you’re having trouble locating one, let us know.
Original, Collapsible, Bravo
To adjust the width of these Kun rests, you’ll need to move the L-shaped ‘end members’ along the elongated base member. To do so, simply remove the nut that fastens the end member to the base, move the end member into the position you prefer, and fasten again with the nut.
There are two lateral adjustment options: 1. remove the brass screw from the narrow end of the shoulder rest. Slide this L-shaped bracket to the width you’d prefer and refasten the screw. 2. use the T-shaped fork member to remove the insert with its offset hole from the wide end of the shoulder rest. Turn this insert 180 degrees and insert it back in the shoulder rest.
Use your thumb to release the quick adjust lever on the end member. Slide the end member into the position you prefer, and close the lever.
Use the tip of your finger to raise the long tab in the end member. Slide the end member until you reach the desired position and let go of the tab. Nudge it gently to make sure it’s secured in one of the slots in the rests’s base member. To ensure maximum stability on your instrument, be sure to adjust both Solo end members. In addition, all Kun rests except the Solo have a round ‘drum’ that pivots. Video: Shine a Light Productions