Sunlite 20 x 2.75-3.0 Tube Schrader Valve 32mmSunlite 20 x 2.75-3.0 Schrader Tube is a lightweight bicycle tube for Schrader valve rims. This tube is made from premium butyl and has 0.9mm wall thickness and a 32mm Schrader valve. Removeable Core.072774632565