The Manfrotto 50cm 5-in-1 Bottletop Kit is a collapsible and handy diffuser with Gold/White & Sunfire/Silver covers.
The bottletops are elasticated so can be easily slipped over the diffuser to alter the colour.
The Manfrotto Bottletops can be set up in seconds giving a taut, professional finish, and collapse down to one third of their original diameter.