Quality inner tube from Schwalble for 20" wheel Fat Tyre bikes such as eBikes and downhill.

Features a Schrader metal valve, 40mm in length.

Fits the following wheel sizes:

20 x 3.50" (406-90)
20 x 3.70" (406-90)
20 x 3.80" (406-90)
20 x 4.00" (406-100)
20 x 4.25" (406-100)
20 x 4.40" (406-110)
20 x 4.50" (406-110)
20 x 4.80" (406-120)