The Gel Snap is Lee's easy and affordable filter holder. Simply insert your 4 x 4" filter, snap it shut, and "snap" it on to any lens 82mm or smaller using the included "Elastomeric Tension Device", also known as an "E.T.D.", i.e, rubber band.
hard to mount on lens
I used this filter holder as a lighter weight option when backpacking in the porcupine mountains. It was nice to not carry more than I needed and was affordable to replace if broken. the rubber band seems very heavy duty and the snap effect on the holder seems like it will last many snap opens and close. great cost effective option.