RGM Soft Grip Painting Knife #050 (Yellow Handle) RGM Painting Knives from $5.87 $12.15 Qty. Add to Cart SKU: RGR050 This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Length: 2 3/4" Width: 9/16" (7cm x 1 1/2cm). RGM Painting Knife Plus #50 with Yellow Rubber non-slip handle. Tweet