Premium Service inner tubes are manufactured to the highest quality. This tube is for automotive light truck applications and can be use in BIAS or RADIAL tires. The size marked on the tube is 12R15/16LT 32/35x12.50R15LT, this may differ from the size needed as most inner tubes are made to stretch in order to fit multiple tire sizes. According the manufacturer this tube will fit on the following tire sizes: 12R15, 35x12.50R15, 265/75R16, 285/75R16, 315/70R15, 265/70R16, 275/70R16, 305/70R16, 265/70R17, 305/70R17, 275/65R16, 275/65R17, 325/60R15, 275/60R17, 285/60R17, 265/75R16, 285/75R16, 315/70R15, 265/70R16, 275/70R16, 305/70R16, 265/70R17, 305/70R17, 275/65R16, 275/65R17, 275/60R17, 285/60R17, 12R16, 33x12.50R16