Size is approx. 55mm A neck unit for 2 types of heads, frame arms and hexa gears is included, and by combining with abundant “side unit” and “sensor unit”, a wide range of mechanical heads can be produced. *Molding color is light gray or dark gray. Gimmick: – It is possible to make an original head by attaching “bite unit” “face unit” “side unit” etc. to “core unit”.- “Bite unit” is movable and can produce roar scene.- You can select and use the “side unit” and “sensor unit” from multiple designs as you like.- Two types of neck units are included, one for Hexa Gear and one for Frame Arms.- Some products may not be supported due to shape restrictions.- Neck joint for Hexa Gear is compatible with 5mm diameter ball joint and 3mm diameter shaft.- The molding color is two-color molding and it is composed of light gray and dark gray. Set Contents: – Core unit A x1- Core unit B x1- Bite unit x2- Sensor unit A x1 set- Sensor unit B x1 set- Sensor unit C x1 set- Sensor unit D x1 set- Sensor unit E x1 set- Sensor unit F x1 set- Face unit A x1- Face unit B x1- Side unit A x1 set- Side unit B x1 set- Side unit C x1 set- Side unit D x1 set- Optional unit A (mane base) x1- Optional unit B (Fang long type) x1- Neck unit for hexa gear x2- Neck unit for frame arms x1 *the above is an automatic translation.