This 124-piece plastic kit makes one Sporocyst and one Mucolid Spore. The Sporocyst is armed with five deathspitters which can be replaced by barbed stranglers or venom cannons. You also get 6 x 25mm round bases, 1x100mm round base and 1x 40mm round base and enough pieces to build 6 Spore mines.
This kit can alternatively be built as a Tyrannocyte. The full rules for using the Tyrannocyte and the Sporocyst and Mucolid Spore in games of Warhammer 40,000 are included in White Dwarf Issue 41.