It's a standard 28" and 27" road tube with Presta 40mm length valve. STANDARD - doesn't mean ordinary: quality rubber compound combined with even wall thickness makes ACID tubes reliable and durable. ACID tubes were tested in laboratory!
For narrow 28" and 27" road tires
For tire width (ETRTO size in mm): from 18-622 to 23-622, as well as from 20-630 to 22-630
Valve type: Presta / SV
Valve length: 40 mm
: 159 g