1) English Pattern Clamp in-Type Bicycle Tube Valves. Size : 28 MM, 30 MM, 32 & 38 MM. 2) English Pattern Rubber Base Bicycle Tube Valves. Rubber Base : Natural or Butyl. Base Dia. 25 MM & 30 MM. 3) Semi American Type Rubber Base Bicycle Tube Valves ( V1.06.1). Rubber Base : Natural or Butyl. Base Dia. 25 MM & 30 MM. 4) American Type Rubber Base Bicycle Tube Valves. (TR - 1) Rubber Base : Natural or Butyl. Base Dia. 25 MM & 28 MM. 5) American Pattern Clamp in-Type Bicycle Tube Valves (V1.05.1).