Specification
-This inner Tube fits bikes that run 27.5 inch wheels that have tyres from 1.5 - 2.35 (40/60-584) 
-The valve on this inner tube is a 40mm Presta Valve SV27.5
 
Impac is produced by Schwalbe, These Impac inner tubes are made from high quality butyl material, butyl is an elastic and airtight synthetic rubber. All Impac inner tubes are 100% recyclable and are produced using 20% recycled old tubes. 
The valve prevents punctures as it is reinforced with dual thickness.
Does this inner tube fit my wheel ?
This inner tube fits the tyre sizes listed below,
27.5 x 1.50  (40-584)
27.5 x 1.75  (47-584)
27.5 x 2.00  (50-584)
27.5 x 2.10  (54-584)
27.5 x 2.25  (57-584)
27.5 x 2.35  (60-584)