The large diameter makes it easy to catch. Insect Net Head Fine 42 Interchangeable Mesh Parts A1 "B Type" Pattern Features. This is an A-One "B Type" object. Easy to install with one touch. The large diameter makes it easy to catch butterflies and dragonflies. Quantity: 1 piece; Size (approximate): Diameter 16.5 inches (42 cm) x Depth 33.5 inches (85 cm); Mesh net 0.008 inches (0.2 mm); Weight: Approx. 4.6 oz (130 g); Material: Netting: Nylon, Frame: Steel, Country of Origin: China