Material: Plastic Feature:1.U Put in whatever u Want to Mull Then U Twist 2.The Top has A Magnet in the Middle which Keeps Them Together 3.Each Hand Muller come with 3 Pieces 4.The Bottom is Screw on,so u can Get Fines fall through Mesh. Keep the fines in the Bottom Size: Approx 5cm High x 6cm Dia x 6cm Base Dia