These hexagonal plain bases are designed for BattleTech and other games played on hex grids. Their regular six-sided shape tiles edge to edge without gaps and also suits models that need a geometric rather than circular footprint. The stated 30 mm size is measured from one flat edge to the opposite flat edge; corner to corner, the base is naturally a little wider. “Plain” identifies the flat, unslotted design with no raised lip. Each base is injection-moulded from matte black ABS, with a slightly inset top and an even texture that helps paint, adhesive and basing materials grip. Suitable for BattleTech and other hex-grid games. The 30 mm size is measured across the flats, not from corner to corner. Flat plain design with no slot or raised lip. Fine textured top supports paint, glue and scenic basing. Open underside leaves room for magnets or added weight. Compatible with Hobby Heaven Open Base System trays and converters. Compatible with popular tabletop miniatures; not affiliated with, endorsed by or produced by Games Workshop.