Universal Compatibility:This soft roller brush cleaner head is fully compatible with for sv19/21 cordless vacuum cleaner, you can vacuum and mop at the same time. Makes cleaning more convenient. Note: Does not fit for V6 DC Series. Not suitable for working on carpet Upgraded Double Roller Brush:Equipped with 2 roller brushes made of super soft microfiber, with LEDs, protect hardwood floors from scratches and maintain low noise control. Perfect for dusting large areas and easily picking up many large objects such as chelio, cat, or dog food Premium Material: ABS engineering plastic body can withstand the impact of a variety of strong external forces and keep the body strong Removable & Washable:The soft roller can be easily removed by pressing the short stick button. Free up your hands from complicated replacement procedures, wash in cold water, then put the brush roll upright to dry Model Number:for sv19/21 Due to different batches, there may be differences in product appearance, color, and printed text, which not affect the use Color: As shown Material: ABS Package Contents: 1 * Rolling brush 1 * Red switch lock 1 * Gray switch lock 1 * Small brush (White) Only the above package content, other products are not included. Note: Light reflection 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.