It can be applied to various styles of brushes and can handle diamonds of different shapes and materials, such as round diamonds, square diamonds, crystal diamonds, resin diamonds, etc. EASY TO ASSEMBLE & USE: It's easy to install and replace the tip on the drawing pen, just screw the tip into the head of the paint brush. Pour the diamonds into the dish and shake it gently to make the diamonds line up. Put glue on the pen and stick the diamonds where you want them. [For work] painting tools and sticker pens are suitable for work Suitable for art painting, jewelry making, nail art and embroidery, etc., suitable for beginners and skilled players.