It's a great mute for students (most of my violin students use it), but for anyone looking for a sturdy mute that stays in place and doesn't rattle, I'd recommend the Spector mute instead.
Oxygen Music has a wide range of brass and woodwind clearning and maintenace accessories, including these economical all in one care kits from Superslick, which contain all the essentials for the saxophone player.
Special formula Superslick Trombone Slide Oil provides long-lasting, noiseless, odorless, butter-smooth slide action with every application. Fine-spray applicator gives an even coating without drips.