Made of Radiopaque Polyethylene. This is used for dilation of the Ureter prior to Ureteroscopy and or stone manipulation. Supplied sterile in peel-open packages. Use with 0.038" guide-wire. French size 8F-24F. Set consists of 10 Dilators of 6F, 8F, 10F, 12F, 14F, 16F, 18F, 20F, 22Fand 24F. Length 70cm. Can be supplied in minimum order of 3 numbers individually packed, of any size in the set