50 pack Mitas 26 x 1 1/8-1 3/4 Classic butyl inner tube type. This tube could also be called a 26 x 1.10-1.75 tube, that will be your decision once you own them. Perfect 50 pack for those that love tubes and tube related things. Features a wall thickness of 0.90 mm.
FV47 valve type is a Presta valve with a 47mm length.