Spinback: http://www.boomerangsrus.com/start.html For high performance contest models (fast catch, MTA, trick catch, Australian Round) Rangs Japan:  http://www.bekkoame.or.jp/~rangsjap/index-E.html Dynatech Canada: http://www.dynatech.ca Boombastic Photos: http://www.boomerang-photos.com Rangs UK: http://www.rangs.co.uk Rangs USA: http://www.rangs.us Rangs Czech: http://www.bumerangy.com