1 Adeptus Mechanicus Pteraxii box set contains:

115 Plastic components to assemble 5 Pteraxii Skystalkers OR Sterilyzors
5 x Citadel 50mm round bases w/ flying stems
1 Adeptus Mechanicus transfer sheet

Pteraxii Skystalkers are armed with flechette carbines, enabling them to unleash a withering storm of solid shot at their enemies from a safe distance. The unit's Alpha is instead equipped with a flechette blaster and taser goad. They offer superb anti-infantry fire support, but they also carry braces of arc grenades which they can drop among the enemy as they soar overhead.

Pteraxii Sterylizors bear phosphor torches, deadly long-barrelled flamer weapons, and swoop down upon their prey to gouge and tear them with their Pteraxii talons. The unit's Alpha is instead equipped with a flechette blaster and taser goad. They will make an excellent close support unit for your advancing Skitarii.