Compatible with the PENPAL Mini Pen Making Lathe, or other lathes with similar headstock and tailstock mounts. Includes a #1MT Live Tailstock Center and a Headstock Spur Center. Enables you to turn handles and other small spindles up to 7" in length on your PENPAL lathe. Spur Center head is 16 mm in diameter; Weighs 1.2 oz; Locks in the headstock collet with its 6.2 mm shank. Live Center mounts in the tailstock with its #1 Morse Taper arbor; Weighs 3.3 oz.