12" Baby Plate CAT #429065. This piece of equipment has almost as many names as it has uses. Originally designed for mounting Baby fixtures to the top of set walls they are also used as the worlds lowest stand by nailing to a floor or on an Apple Box. Other names include Baby Nail On 750 Pigeon or just Nail On Plate. MSE manufactures Baby Plates in 3" 6" and 12" straight and a 12" Right Angle.