Swimming pool Test kit,3 Way Test Strips for Free Chlorine,PH,Alkalinity. 50pcs in a plastic bottle. Swimming pool Test strips3 Way Test Strips for Free Chlorine,PH,AlkalinityProduct Size(cm):3.4*9.5Product Weight (Kg):0.03Measurement:26.5*21*11cmMaterial/Remark: PP 3 way Swimming pool water Test kit for Free Chlorine,PH,Alkalinity