Style:Memory Block Product description Unique sanding solutions for difficult applications. Hard side for PSA paper, extreme curving power for fender crowns and motorcycle tanks.Soft 'Memory' side reduces pressure for nibs, louvers and other challenging surfaces. var urlAddress = location.search; var frame = urlAddress.indexOf('ItemDescV4'); if(frame -1) {var urlAddress = location.pathname; var slashSpot = urlAddress.lastIndexOf('/'); var ebayItemID = urlAddress.substring(slashSpot+1);}else {var itemFound = urlAddress.indexOf('item='); var ebayItemID = urlAddress.substring(itemFound+5); var amperSpot = ebayItemID.indexOf('&');if(amperSpot > -1) {ebayItemID = ebayItemID.substring(0,amperSpot)};}}var seller='kustompaintsupply'; var flash_code='';document.write(flash_code); From the Manufacturer A unique sanding solution for difficult applications, the Memory Block features a firm vinyl side with extreme curving power for areas such as fender crowns and motorcycle tanks. The soft side features an exclusive memory foam that conforms to character lines and reduces pressure over nibs, louvers and other challenging features.