Welcome to our storeUseful and practical tool: With 3 tufts of fine bristles, the tip of the plaque explorer can touch persistent dental plaque around implants, crowns, bridges, veneers and other areas particularly susceptible to the formation of dental plaque. Clinically proven to be more effective than floss in improving gum health. 4 piece set: 4 plate probe tips perfect for the whole family. The different colors make it easy for each member to find their own color (colors may vary). Compatible brands and models: waterpik: only suitable for WP - 100 series / WP - 250 series / WP series - 450 / WP series - 560 / WP series - 660 / WP series - 811 / WP - 861w / WP - 900 / WP - 940 / WP - 950 and not at WP - 60 / WP - 70 / WP - 72 / WP - 360/wf - 03ec/wf - 02. 2, flycat: only fit for fc168/fc188/fc158, not fit for fc159. 3, waterpulse: v300/v400 / V600 / v660. Quality and guarantee: safe use guaranteed, tip made of food-grade resin ABS Replacement period: for reasons of hygiene and efficiency, Replace the tips every 1-3 months depending on your frequency of use.