An attachment device (10) for attaching accessories to a support comprising a connector (14) for connecting to a device to be supported, and a strap (11), the strap (11) having a support region (12) mounting the connector (14), and first and second flexible engagement portions (16, 18) the first engagement portion 16 including a plurality of spaced deformable fins (20) extending from one side thereof and a plurality of through apertures (24) spaced along the length of the first engagement portion (16), the second engagement portion (18) including a plurality of spaced deformable fins (22) extending from one side thereof, and at least one upstand (26, 28) extending from the other side thereof adapted to enter and engage with at least one of the through apertures (24) of the first engagement portion (16).
