The adjustable position arms allow for use on different depth radiators. When flat, the plasticarms can slide along the airer tube frame to alter the size of the gap. When the arms are folded out to 90° tohook over the supporting radiator, they lock into place over the cross wire to provide secure fixing atdifferent positions. It will provide 2.9m of drying space & can be wiped clean with a damp cloth.Approx Size: H50cm x W15cm x D33cm