When it comes to sharpening on whetstones, one can use cabinet liners or damp towels to anchor your stone or use this slip-resistant, stone-elevating stone holder like a pro. It fits stone lengths up to 235mm, which accommodates most synthetic stones on the market. 

Brand: Ito 伊藤製作所 
Product Type: Stone Holder
Size: 287mm x 74mm x 39mm
Weight: 720g