This is a Green Stuff World Plastic Square Base 30mm (20pcs)

Green Stuff World's Hollow Plastic Bases offer a unique and creative solution for adding dynamic water terrain effects to your wargaming and tabletop miniature collections. 

They have been designed with a beveled edge and a hollowed-out interior to allow for water or swamp-themed terrain effects, giving the illusion of miniatures being partially submerged in water or wading through a swamp. These have been designed to be compatible with various wargames and board games, making them suitable for a wide range of gaming systems. Whether you play fantasy, sci-fi, historical, or other genres, they can add a touch of realism to your miniatures.

Additionally, they can serve as 25 to 30 mm base adapters. This feature is particularly useful if you use them as compatible adapters for Warhammer the Old World bases, where the need to use old miniatures becomes a reality.

Contains 20x Base Adapters 25 to 30mm. Compatible with Warhammer the Old World