Everything you need for identifying and preserving aquatic insects while on the water. The 4 x 9 carry case is easily carried in a vest or pack and has plenty of extra space for additional gear. The kit includes the collapsible Insta-Seine (10 x 16 unfolded), three glass vials, one petri dish, magnifying glass, water thermometer, larvae forceps, and a 59-page insect guide/fly fishing instruction book.