But these go to 11! It's one louder! Why have the volume at 10 when you can put it at 11! These keychains have been designed to resemble a guitar amp volume dial, that goes to 11 of course! Each keychain has 4 laser cut and engraved pieces from a combination of black acrylic, and specialty brushed metallic gold and silver engraving plastic. Each one hand assembled. Measures approximately 1.75" wide and 2" high with black split keychain ring and matching black lobster clasp This keychain is the perfect gear bag accessory for any rock musician, or anyone living life full volume! A unique homage to the worlds greatest fictional band, Spinal Tap!