Please note: Please pay attention to the product photos and dimensions. Zipper ZI-HB204 has 2 planer types. Type 1 requires the planer blades 210 x 22 x 1.8 mm (6 holes, 2 rectangular + 4 round), type 2 the planer blades 210 x 16.5 x 1.5 mm (2 holes). HSS Planer Blade for Zipper ZI-HB204 Type 1, 210 x 22 x 1.8 mm (6 Holes - 2 Rectangular, 4 Round). 1 Set = 2 Planer Blades Resharpenable. Made of high quality HSS high speed steel, Rockwell hardness: 63-64HRC Helliston (TM) is already more than 20 years old renovation company. The planer blades are used daily by us or in the wooden workshops of our business partners. We can guarantee that they meet our high quality standards. --- Do you have any suggestions? What could we do better? How could we hide our products? We would like to hear your opinion! Write to us.