It's a dice tower that looks like a single castle tower or rook. - Confirmed prints with no support - Is printed as four individual parts that fit together, no glue needed - Dual helical ramps with ridged pattern to roll the dice - Top should fit loose enough to allow twisting This enables loading the dice into the top with the holes blocked by the helix wall, and then twisting the top to drop the dice - Catch tray at bottom catches the rolling dice around 90% of the time ( proximity to unreachable dice sized hiding places may affect efficiency of catch tray ) - Genrally will handle 4d20 or similar volume of dice in one drop - Dropping dice thought makes a sound that some may find not too loud to tolerate - Rotating the top counterclockwise to release tends to reduce the rate of runaway dice.