MULTI-PLATE HESTER DENDY SAMPLERS ARE DESIGNED FOR SAMPLING OF INVERTEBRATES IN STREAMS, RIVERS, AND LAKES. THE ROUND HESTER DENDYS FIT EASILY IN WIDE MOUTH JARS FOR TRANSPORT AND STORAGE. HESTER-DENDYS ARE TRADITIONALLY MADE FROM 3 INCH SMOOTH 1/8"MASONITE , NYLON SPACERS AND ZINC PLATED EYEBOLTS, WASHERS AND WINGNUTS. WE CAN CUSTOMIZE YOUR HESTER DENDY TO ANY SIZE, MATERIAL OR DESIGN AS YOU REQUIRE.