BLADE HUB + RING COMPATIBLE WITH KYNAST ROTARY MOWER MODELS: E17 - E17/27 - E27 CHARACTERISTICS: HIGHTH OF THE JOINT: 29 mm CENTRAL HOLE: 11 mm INSERTION DEPTH: 16 mm OUTER Ø: 49 mm INTERNAL Ø: 11 mm ORIGINAL CODE: 00-3105-98 Original CODE: KYNAST 00. 3105.98 KYNAST 100.000.974 CZ