Sennelier is indeed a renowned French manufacturer of art materials, celebrated for its long history of producing high-quality pigments and art supplies. Founded in 1887, the company has built a reputation for excellence in the artistic community, particularly due to its commitment to hand-selecting pigments and using traditional methods in production.

Sennelier's wide range of products includes various types of paints and media, such as:

1. Oil Paints: Known for their rich, vibrant colors and smooth texture, Sennelier oil paints are favored by many professional artists.
2. Watercolors: Sennelier's watercolors are also highly regarded for their purity and brilliance. They use honey in their formulations, which helps improve the paint's texture and longevity.
3. Acrylic Paints: The company’s acrylic paints offer excellent pigmentation and performance for both professional artists and students.
4. Pastels: Sennelier is especially famous for its soft pastels, which are highly pigmented and have a smooth, velvety texture that allows for rich color application.
5. Gouache: Their gouache paints are known for their opacity, vibrant colors, and matte finish, making them ideal for both fine art and illustration.
6. Inks and Other Media: The company also produces high-quality India inks, tempera paints, and other traditional art materials.

Sennelier's products are designed to meet the needs of both professional artists and serious hobbyists, with a strong emphasis on the preservation of traditional techniques and the use of superior materials. The brand has had a longstanding connection with many famous artists, including Pablo Picasso and Henri Sennelier.