RGM Painting Knife Plus #023 RGM Painting Knives from $5.56 $8.25 Qty. Add to Cart SKU: RGQ023 This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Length: 1 5/16" Width: 3/4" (5 9/10cm x 1 9/10cm). RGM Painting Knife Plus #23 with dark brown bubinga wood handle. Tweet