Stop & Go One Short Stopping and the beads be released again and can already inside the ball train Weiterflitzen. With this expansion pack lets you with the help of the assembly instructions Two Stop Points. The stop can be operated manually and can be creative in existing fischertechnik has a ball tracks. With this mat can be increasing the sphere panels be upgraded and the play value. Including 4x Flex 90, various parts (Corner Stones Corner brackets etc.) This cutlery is a perfect complement to all boxes the dynamic range.