A 16th note with stem facing up, a 16th note with stem facing down, and a 16th rest.Four 16th notes beamed together.
A sixteenth note (also called a semiquaver) is a note that has a value of 1⁄16 of a whole note, which is how it gets the name. It has two flags or beams. In the time signature it has a value of 1⁄4 of a beat.