Aiskaer Leather Craft Edge Dye Roller Pen Applicator Leather Craft Oil Painting Making Tool Brass Roller 1. Size:Length 5.3 inch, Diameter: 0.62 inch.Weight: 33.5g. 2. Just dip appropriate oil to the pen, and rolling the head along leather edge Paint smoothly and naturally form into circular shape. 3. Aluminum alloy pen body and metal copper head, light weight, easy to operate. 4. High quality material, durable for long time use. 5. Please clean the paint after you use it.