Spike (Super Mario World)

Spikes are thin, short, smooth-sided, pencil-shaped wooden pillars in Super Mario World. They come down from the ceiling or up from the floor. Most do not retract all the way, leaving their points exposed. They are found in the Chocolate Fortress and #7 Larry's Castle. They are indestructible obstacles, but they can be touched from the side unlike a Skewer, which, unlike the wooden stakes, have spike-studded sides.