Features: Wide range of use: Our butterfly pinning case and pins are great for insect pavilions, insect anatomy classes, outdoor practices and other events with insects, providing people with some beautiful cases to store the butterflies and some small insects. Delicate decoration: After placing the butterflies into this butterfly collection case, you can hang them on the classes, homes, schools, offices, arts centers, corridors and more as a novelty and exquisite ornaments for these places, which can easily get people's attention. Specifications: Material: Insect collection case: wood, acrylic, EVA foam Specimen pins: stainless steel Collection case color: gray Size: Insect pinning case: Inside: 6.3 x 4.72 x 0.67 inches Outside: 7.87 x 6.3 x 2.05 inches Specimen pins: 40 x 0.32 mm, 40 x 0.38 mm, 40 x 0.45 mm Package includes: 2 x Specimen shadow box 300 x Insect collection pins Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays. Small items, adult supervision is needed when it is played by kids. Be careful with pins with pointed parts.