VIRGINIA ABRASIVES 425-05234 GP Diamond Grind Block 2" x 2" x 4", general purpose, diamond grinding block, 6 mm x 6 mm segment height, includes holder, segments are remounted, fits floor grinders from Deco, general, all major equipment companies. The product is manufactured in china. Easy installation and easy handling. Features The product is manufactured in china The product is highly durable and easy to use Easy installation and easy handling USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.