Instrument that generates micro-vibrations, optimising the materials thixothropic properties and making composite modelling easier and faster. Better adaptation of the composite to the cavity wall, with no detachment and fewer air bubbles. Composite is much less sticky than with a traditional instrument. Increased control of material thickness and more precise application. Button allows vibration in continuous mode or with short pulses. Easily exchangeable instruments. Compact and light: 160 x 13mm, with a weight of 33g. No wire: requires AAAA battery 1.5V. Vibration frequency: 140Hz.