Double Ended Tools: Each clay tool has a double ended stylus. Each head is not the same size. Content : 5 plastic dotting tools + 5 rubber tipped pens + 4 ballpoint styli + 4 pottery modeling tools. Ball Tools: All balls are made of stainless steel. Diameter of double sided ball tool kits: about 4mm, 6mm, 8mm, 9.5mm, 11mm, 13mm, 16mm, 19mm. Perfect for clay, art projects, sculpture and other craft projects. Silicone rubber tips: The pen is about 15cm long, 1.1cm long soft tips in conical tip, angle chisel, round chisel, flat chisel, conical tip with plastic handle, smooth, comfortable to hold. Excellent for color shaping, art blending, and touch-up detail work. PLASTIC PEN: It takes little pressure to use these ball-point styli to make smooth lines in paint. clay or embossing on soft paper. It works well for shaping petals and leaves and decorating cakes. Wide Uses: Commonly used for color blending, drawing, touch-up detail work. Ideal for dotting, painting on rocks, sculpting clay, embossing paper flowers, nail art and sculpting crafts.