It fits a 5 gallon bucket and it strains the little lumps that may be in your paint, keeps any foreign particles from into the spray damaging it and causing imperfections in the paint . 250 microns fine mesh can filter Many things, for example:Glaze, Paste, Paints, Biodiesel, Methoxide, Gasoline, , Engine Coolant, etc. Stainless steel strainer, can be well supported on the bucket, and will not collapse from the weight of paint, strong, durable, no deformation, easy to clean and can be reused. This is also a environmentally friendly item, because you'll no longer be filling your landfills with strainer bags. Color: silver Material: Stainless steel Package Contents: 2PCS 5 gallon bucket sieve Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.