This markers use high-quality water-based pigments, which are environmentally friendly, non-toxic, safe, and odorless. The pen body is made of durable PP material, with a comfortable feel and anti slip design, ensuring a stable grip during the creative process. High density bristles, even ink output without pilling. Double head thickness design. This marker features a dual head design with a thin tip (0.6mm) at one end, suitable for fine drawing and detail processing; The other end has a wide head (1.0mm), suitable for large-area coloring and quick coloring. Bright colors, sufficient ink volume, wide color gamut, multiple colors, smooth ink output, comfortable pen grip