The PC-2 Snap-On Mesh Chair is an economical heavy duty, four sided chair that quickly snap onto 4 ga. to 10 ga. mesh to correctly position it in the slab. The Snap-On Mesh Chair is available in most heights from 3/4″ to 3″ and the Snap-On Mesh Chair With Base is available in heights from 1-1/2″ to 4″. The Chair will accommodate wire mesh 4 ga. to 10 ga.