Parts intended to make most buckets or whatever to a hydroponic system with coupler, sprayer and clamps to fit with 16 mm tubing. Clamps for whatever board you want hang to place mesh-pots. Spraye can be fitted at the end of tube or if a longer tube is used where ever. Just remember to drill a hole before you glue the sprayer to the pipe. If sprayer is fitted at the end of tube, make a cut out to fit the sprayer. Tubing is 16 mm and 1 mm thickness.