This item is sold on Amazon under the following name: Musiclily Pro 10.5mm Modern 6-Point Tremolo Unit Bridge with 40mm Solid Brass Block for Squier Strat Electric Guitar, Chrome Both the mounting pitch and saddle pitch are 10.5mm. It was installed on a Squier Classic Vibe. Due to the brass block, it has a significant weight, and the sound changes considerably when replacing a die-cast block. I removed it when I sold the guitar. There are minor scratches, but it's in good condition as it was used for a short period. It will be disassembled and shipped via post.