PSI Woodworking LCENT4 4 Piece Wood Lathe Center Set for #2 MT 5/8-inch diameter headstock spur center for narrow spindles 1-inch diameter headstock spur center for standard spindles Live ball bearing tailstock center with cup and point Hollow center for drilling 5/16-inch (#2 MT) through holes (for lamps, etc) Packaged in 2 wood boxes