Since it has a double-edged blade

As these are handmade items

■ Need Setting Up KATSURA Japanese Chisels

New material improves water resistance and durability

■ Uses: All Purpose kitchen knife

"KYO HIGASHIYAMA" Synthetic Whetstone Double Sided #1000/#6000 (Middle/Finish) AO-TSUBAME Since it has a double-edged"KYO HIGASHIYAMA" Synthetic Whetstone Double Sided #1000 #6000 (Middle Finish) Size : 205mm x 75mm x 35mm, Weight Approx. 1. 2 kgs Grain Degree : #1000 #6000, Middle and Super Finish Made In Japan No need to soak before using. Just pouring some water on the surface is enough. ST series is standard and main series, with all number of whetstones to fulfill you sharpen the knife. CR VT series is for hard stainless and carbon steel quick to sharpening.