I was concerned about the strings falling off my Strat, so I purchased a guitar works 10.8mm tremolo plate & steel block (6985 yen) and combined it with Gotoh steel saddles S108 (2380 yen). I took it off immediately after installing it, so it's in good condition. It should fit a standard Strat without modification. The arm is not included (a 5mm one will fit). Please refrain from price negotiations.