Feature●Filter #1 ND1000 10 Stop exposure correction. Compare to Lee Big Stopper.●Filter #2 ND64 6 Stop exposure correction.●Filter #3 ND8 3 Stop Exposure Correction●All Filters are high quality optical glass●Each Filter Includes a Padded Hard Plastic Clamshell Case.Description Filter #1 : ND1000 Filter. 10 Stop exposure correction. Compare to Lee Big Stopper. Filter #2 ND64 6 Stop exposure correction. Filter #3 ND8 3 Stop Exposure Correction. Fits Cokin Z-100, Lee & Hitech 100mm drop in Filter holders.