Walter 07-R 453 Surface Conditioning Belt 4-1/2, Medium (Box of 10) Walter Surface Technologies Sale! from 6150 /per Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Surface Conditioning Belt, 4-1/2" Dia, Medium Grade, Quick-Step Blendex SKU:WLT 07R453