This grid from Lightbulb Rentals is specifically designed to fit the Profoto Magnum Reflector. It narrows the beam spread of light to 10°.
Profoto B10 Plus Battery Powered Flash$75/day
Wescott Scrim Jim Cine Kit 4′ x 4′$30/day
Profoto Hardbox$50/day
Elinchrom Indirect Litemotiv Octabox 75″$100/day
Impact Black/White Umbrella (48″)$5/day
Impact 5-in-1 Reflector Disc (42″)$5/day
Profoto RFi Speedring for AlienBees/White Lightning X$10/day
Profoto RFi Softbox 1 x 4′ Strip$25/day