Material: silicone Size: 41.5*0.5cm Package including: 1* silicone cathethers urethral sounds Instructions for use: 1. Lubrication: Before latex catheter insertion, needed medical lubricant lubrication. Super-slippery latex catheter inserted before the first fully wet with sterile water, which reached super-slippery effect, without the use of lubricants. 2, insert: the catheter lubricated carefully inserted into the bladder (where urine is discharged), then insert 3cm. 3, water: Hold the valve cover using a syringe without a needle forced into the valve, the rated amount of sterile water injection, and then gently pull out the catheter, so that the expanded bladders card letter to the bladder. 4. Remove: When removing the catheter can be inserted into the injection method with an empty syringe barrel valve let the natural discharge of water, or cut to remove the catheter tube body after rapid drainage.