The Ibanez LoTRS 7 Floyd Rose Patent Tremolo is compatible with 
Ibanez guitars that have a 35MM tremolo block. This means that if you have an Ibanez guitar with this specific block, you can use the 
Lo-TRS 7 tremolo without any issues.

Ibanez Lo-TRS 7 Floyd Rose Patent Tremolo. Comes with 35MM tremolo block. Made by Takeuchi Japan

Part number: 2LT1UV35B