Turned from Ash and treated with Linseed Oil. Metric Length x Diameter Imperial Length x Diameter Bore 22 x 22 mm 7/8" x 7/8" 6 mm 35 x 28 mm 1 3/8" x 1 1/8" 8 mm 44 x 35 mm 1 3/4" x 1 3/8" 10 mm 50 x 42 mm 2" x 1 5/8" 12 mm 70 x 55 mm 2 3/4" x 2 3/16" 18 mm