Rent-A-Girlfriend is the name of both manga and anime that became rather popular. Ruka Sarashina is not one of the main characters, but a supportive one. She sometimes acts as an antagonist.
She's depicted wearing an oversized gray sweater, a silver necklace, a white shirt underneath, teal/blue shorts, white socks, and purple sandals. Her signature look of short hair with a blue ribbon tied around her head is also featured.
This figurine is made by Banpresto, and its height is approximately 7 inches or 17 cm. The statue is an Exhibition version, thus it is not flexible in any way. She's not made to be a children's toy, but a display product.