YAMAHA Silent Brass, a pickup mute from the PMX series. - Brand: YAMAHA - Model: Silent Brass Pickup Mute PMX3 - Included: Instruction manual, connection cable - Size: 62 x 139mm Thank you for viewing. I purchased this a few years ago for practice, but I haven't used it, so it's unused. As shown in the images, the box has some stains. The contents are untouched, but please understand that it has been stored by a private individual.