What is a saxophone leak light?

[@DolphScreamingSax]

Clear and complete. Thanks.

[@cathyba5113]

Very interesting video, thanks

[@enriqueguerrero1994]

Where can I buy this light...?

[@Saxcomprehensive]

Hi. This particular leak light is sold by Dawkes. You can get it from their website. They also have a KZbin channel in which they talk about it. If you intend on using a leak light a lot then you probably should get a good one. But if you are going to just use it now and again, then there are leak light for much cheaper. This one cost around £37. Thanks