Very basic. Tattooed with it last night, ran really good, a bit more vibration than im used to with the neo-tat I have used. stroke length is about 4mm. Motor is mabuchi rk370. body housing is steel with mat clear coat over it. 20121002_046420121002_0464.jpg20121002_046320121002_0463.jpg20121002_046220121002_0462.jpg20121002_046620121002_0466.jpg20121002_046520121002_0465.jpg