Cheap Chinese plastic calipers that turns on automatically has a tendency to turn by itself when it is placed in a drawer. For that reason I designed this cap, that fixates the jaws of the caliper in place, so it can't move and hence can not turn on by itself. This cap is for a smaller 100mm caliper - the jaws measure 20mm in width and approx. 25mm in height. Here printed in generic blue PLA on a Anycubic K2 Pro and generic white PLA on an A1 Mini.

See also my "Locking Caliper Cap (15cm)" for larger Chinese calipers.