Either liquid or dry. Can be put in a disinfect cabinet for ozone sterilizat. But cannot be heated with a microwave. Material : Teak Wood 6 piecs of set Style 01: 6.2 X 2.0 cm x 4.50 handle Style 02: 5.5 X 1.8 cm x 4.50 handle Style 03: 4.5 X 1.8 cm x 5.0 handle Style 04: 3.3 X 1.0 cm x 6.0 handle.
