I purchased this tremolo block new from an overseas manufacturer a while ago, but the string hole positions didn't fit my guitar, so I never used it and have kept it in storage. It's a steel block for synchronized tremolos, such as those found on Stratocasters. It's heavier than typical tremolo blocks, weighing approximately 234g. The condition shows multiple scratches and marks. I measured the hole spacing with digital calipers: Length from the center of the 1st string hole to the center of the 6th string hole: approximately 56mm String spacing: 10.8mm Mounting hole spacing: 45mm Distance between mounting holes: 22mm Please understand that these measurements are approximate due to being taken by an amateur. Please understand that this is a used item that has been in someone's possession before. Please read my profile before making a purchase, as there are some things I'd like you to confirm. #GuitarParts #AnonymousDelivery