NoTubes Rim Strip

Stan's Olympic rim strip is designed for their Olympic rims to improve inflation and prevent burping. Olympic strips can also be used in Mavic UST rims with non-UST tyres.

See NoTubes Rim Compatibility if you're not sure which strip you need.

Stan says:-

The Olympic is a custom rim strip with a presta valve and removable core to be used with our ZTR Olympic, ZTR 355, and ZTR 355 29er rims, Arch, Arch 29er. This rim strip is only 38g and features a removable valve core which allows for easier application of our tire sealant.
Standard rim strips will not work with the ZTR Olympic, 355, or 355 29er rims, Arch, Arch 29er.