The 25091 is a Urine test tube that is 12 ml cylindrical in polystyrene and comes with a red cap and label and is sterile and separately wrapped. The 25095 is a urine test tube that is 12 ml cylindrical in polypropylene and comes with a label and red cap and is separately wrapped and sterile. The 25092 is a 12 ml conical Urine test tube in polystyrene and comes with a red cap with label and is sterile and is individually wrapped. The 25096 is a 12 ml conical urine test tube in polypropylene with a label and red cap and comes sterile and individually wrapped. The 25071 is a 12 ml conical Urine test tube with a wide mouth and comes with a blue cap and label and is sterile and individually wrapped.