KUN SOLO Violin Shoulder Rest (Authentic) 3/4-4/4 Size Fine width adjustment with 5-step slide, foldable storage type Lightweight resin construction, weight approximately 63g The box has been discarded, so only the shoulder rest itself is available. I used it for a while after purchasing, but it doesn't seem to fit my body type, so I'm selling it. Please understand that this is a used item before purchasing. No claims or returns accepted.