If you've never tried anal play. this Beginner's Bead Kit is just what you need to explore the amazing world of anal stimulation.Begin with the smallest set of beads. which features a tip of just .5'' to ease insertion before gradually expanding to .75''. Once accustomed to the size. experiment with the stringed beads before graduating to the largest set. No. 1 and No. 2 feature a flexible shaft that bends with your body's contours to hit just the right spot. while the sturdy retrieval cords of No. 1 and No. 3 offer safe and easy handling. Be sure not to insert the very last bead of No. 2. as you will need it to handle the item.No. 1:Insertable Length: 12.7 cmDiameter: 2 cmNo. 2:Insertable Length: 24.7 cmDiameter: 2.5 cmNo. 3:Diameter: 2 cm