●For JB Jazz Base Style Pickup ●Length: 80mm, Width: 18mm, Height: 15mm ●Material: EVA foam; Hardness: 38; High density compression; Adhesive on back; Easy to install ●Instead of springs we install high-density foam under the pickup to adjust the height of the pickup. Maintains flexibility, reduces vibration and makes pickup more stable ●Package Content: 10 pcs PU Foam