This is the only Torpedo we offer, more sizes will become available as demand dictates. We have provided the measurements of the completed kit so you can decide if this accessory fits your model. The kit requires assembly and painting. Plastic model cement, acrylic or enamel paints are recommended however, polyurethane coatings can be used if applied in thin coats. The model may be dropped but can be damaged on hard surfaces. They are very light and may also require a nose weight to prevent looking like an empty drop tank when released. A wad of silicone inside the nose has done well for us