Despite the fact that the Wonder Girls have been overseas for quite a while now, it looks like the wonder effect is still quite strong in the homeland! As we previously reported, the Girls completed shoots with a doll-like concept and sporty style as part of their Spring/Summer school term promotion for EXR products. Fans are loving the endorsement, but it looks like shoppers are showing their appreciation too through a large increase in sales. As of February 2010, it was been revealed that EXR has enjoyed a 120% revenue increase compared to 2009's school term line. This breaks the previous record and marks the biggest sales record that EXR has ever achieved. The Wonder Girls' 'Wonderful Pack & Sneakers,' which used various eye-catchy colors, materials and stylish design have been a major factor in expanding the target audience's choices among the merchandise. Furthermore, a backpack product with the 'WG' logo, which is a brillian neon purple and black, comprises of 75% of its sales. The lightweight & sleek "FOX" series has also met much success, achieving 80% of its sales. With their activities in the United States, the Wonder Girls haven't been active in Korea, but with their endorsement with EXR and the 'Wonder Style Book,' they have aroused much interest from the public. This style book, which includes the previously reported doll/toy and casual photos, showcases the Wonder Girls in various cheerful styles. "Although many other brands have a variety of merchandise items for the upcoming school term, our marketing strategy of using idols has produced successful results," a representative of EXR said. "We hope to create a product that features the style of the Wonder Girls."