The brick adapter enables you to easily snap your Bits to LEGO® bricks. Each pack comes with brick adapter studs and sockets. HOW IT WORKS With brick adapter studs your Bits will defy gravity! Simply snap an adapter underneath your bricks and press the feet of your Bits into place. With brick adapter sockets you can mount your Bits on top of LEGO® bricks. Simply snap the adapter on your bricks and press the feet of your Bits into place. Each pack includes 8 adapters to fit up to 24 Bit. Bits can be adhered on top or below the adapters to instanly add light sound and motion to any creation. Product code & UPC LB-660-0015-0000A : 810876020558