Protec Pro Tec A350 Saxophone Thumb Rest Gel Cushion

Really good product...easily fitted and removed as needed. I have found however that the 'd' palm key riser will swivel a tiny bit while playing. This doesnt happen on the 'e' or 'f'. It's because of the hand action involved in working from palm 'd' to the front 1,2,3 keys or the front high 'f' and above. A tiny drip of glue would sort this out but I dont want to do that. Other than that, they're nice and grippy with a very ergonomic shape and I like that they are clear and therefore dont spoil the look of the horn.

I did have the problem of D palm riser falling off, before fitting use a cloth/rag wet it with water dip in the tiniest drop of washing up liquid & give palm key a good wipe over, dry off & put palm key risers on, the wash up liquid is a degreasant & when our hand palms sweat all our keys get greased up, these palm risers are made of silicone & will hold on better too squeaky clean metal.

La verdad no son la gran cosa, cuando pones los dedos arriba de E o F llegan a resbalar dependiendo que presión ejerzas sobre estas teclas, independientemente se me hace algo muy innecesario tal vez sea algo que le sirvan mas a un niño que esta aprendiendo y que sus dedos realmente son muy chicos, fuera de eso son de goma blanda transparente estéticamente no le veo nada malo, a excepción de lo que ya dije

These fit quite tightly on the palm keys. I only use them on the d key. They can still work off after a while though.

It doesn't do much but does add a little more comfort and grip to the horn.