The kit comes with two separate models. The Grissom parts are molded in three small sprues of white plastic while the Klingon Bird of Prey parts come in two sprues of Green and one sprue of clear plastic for a combined total of 31 parts.

There is a single sheet of instructions (mostly for the Klingon Bird of Prey) and the paint/decal guide is located on the box as per Polar Light's current style so don't throw out/recycle the box till you are finished.

It comes with two black plastic stands as well as a decal sheet (mostly for the Grissom and includes naming options for other Oberth class ships seen in various Star Trek series or movies.)

Very straight forward simple snap together kit.

I opted to base paint each of the sub assemblies first before detail painting, weathering and decals added as per pictures from the movies or TV series or from the internet. The Bird of Prey was actually easier as it only had a few decals to add which made the thing a very quick painting session.

I used Tamiya XF-71 as the base green color applied with an airbrush. The various green colored panels were brush painted Tamiya XF-5 Flat Green or XF-67 NATO Green. I used Model Master Acrylic Insignia Red with a brush for the red feathers underneath and Mission Models Dark Ghost Grey for the various grey parts while the Klingon Disruptor Cannons were brush painted Vallejo Metal Color Magnesium. The engine exhaust was bursh painted Glossy Red, Clear Red, Yellow and metallic Grey.

When the paint was dry, I sprayed on a thin gloss coat of Future. When that was dry, I added the decals as per the instructions. I didn't encounter any issues with the Klingon decals using MicroSol/Set and the odd drop of Solvaset.

After the decals dried, I used an oil paint wash of 50/50 Burnt Umber/Black mixed 1:1 with thinner to pop out the details. When it was dry I sprayed on thick coat of Tamiya Flat XF-86 to seal them in.

Once the parts were dry, I glued them together for the final assembly. The wingtip disruptors don't have the most solid fit so I used CA glue to attach them to model.

The Grissom wasn't as straight forward as the Klingon Bird of Prey. I glued some of the parts together based on the paint scheme. The parts and sub-assemblies were painted flat white first then sprayed either silver, pearl white or XF-23 Light Blue. The underside pod was the worst because it required a lot of masking in awkward shapes/places. It took a couple of tries to correct overspray and paint leaking thru the tape.

Once the parts and sub-assemblies were painted to my satisfaction, I sprayed on Xtracrylix Gloss coat to prepare for the decals. And there are a lot of decals for such a small model. I had the hardest time with the underside pod (again) because of the shape and the awkward (relatively) large decals that didn't fit the curves as well as I hoped. I had to use a fair amount of Solvaset to get them to snuggle down into the detail. I'm not all that happy how the decals for the underside pod worked out, but it looks okay from a distance (and there was no way to correct the issues.) Once the decals were dry, I wiped down the parts to remove excess solvent and glued them together.

I used Xtracrlyix Semi gloss for the final coat. I didn't weather the Grissom like I did the Klingon Bird of Prey because Federation ships have fairly clean surfaces compared to the grimy Klingons.