This dilator set is designed for stretching exercise to widen the vaginal opening and help restore vaginal strength and comfort. There are 5 different sized dilators that are easy to use thanks to the finger loop. Start with the smallest and slowly work your way up. The dilators are made of soft body-safe silicone and are flexible for a comfortable experience. Always use plenty of water-based lubricant to facilitate insertion. Easily clean the dilators after use with lukewarm water and toy cleaner or a mild soap.Sizes:108 x 13 mm | 4.25 x 0.51 inch122 x 20 mm | 4.80 x 0.79 inch140 x 22 mm | 5.51 x 0.87 inch170 x 27 mm | 6.69 x 1.06 inch200 x 33 mm | 7.87 x 1.30 inch