The orange Stan's Notubes valve made of aluminum and plastic is a Sclaverand valve with a diameter of 44 mm and weighs a full 9 g. The universal valve is packaged in pairs.

Material:
Aluminum, plastic

Information on EU Regulation GPSR 

Manufacturer’s name: Stan's Performance Products LLC
Manufacturer’s postal address: 202 Daniel Zenker Dr., Big Flats, NY 14814
Manufacturer’s email address: hello@stans.com

Importer's name: Hermann Hartje KG
Importer's postal address: Deichstraße 120-122, 27318 Hoya, Germany
Importer's electronic address: info@hartje.de