KUN SOLO Violin Shoulder Rest (Authentic) 3/4-4/4 Size Features 5-step slide adjustment for width, foldable for storage. Lightweight resin construction, approximately 63g. The box has been discarded, so only the shoulder rest itself is included. 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.