This SPST ON / OFF switch isn't an 1: 1 direct replacement. It does not fit perfectly into the hole of the TS series pedals and more. Although the switch does not snap in it fits in the pedal securely and tightly. Switching is 100% reliable. The advertised solution is absolutely road tested. Fits all Ibanez Series 5 Soundtank and Series 7 Tone-Lok Pedals including the listed below. Series 5 Soundtank: PL5 CR5 CM5 SF5 TM5 MF5 FZ5 BN5 TS5 TL5 PH5 CS5 Series 7 Tone-Lok: TS7 DS7 PM7 SM7 FZ7 DE7 CF7 PH7 LF7 PD7 SB7 AW7