Model P12 fits Classic series 2.5" heel & 3" heel

Model P3 fits: Classic series 2.75" & 3.5" flare heel.

Model P2040 fits: Salsera series 2.5" heel, Signature/Party Party/C series 2" Slim & 3" flare heel.

Model P5059 fits: Salsera series 3" heel, Competitive Dancer series 2.5" flare heel & 3" flare heel, Classic series 3.5" heel, Signature/Party Party/C series 2.75" & 3.5" heel.

Model P5830 fits: Competitive Dancer series 2.5" slim heel, 2.75" slim heel.

Model PPG fits: Signature/Party Party/C series 2.5" heel.

Model P387 fits: Classic series 1.3" heel.

Model P382 (Ultra Slim) fits: Classic 3" slim plated heel, Limited & Stiletto Heels Edition 3.5" stiletto/2.75" stiletto/3" slim, Competitive Dancers 2.5"/3" stiletto heel.

Model PCI fits: Signature/Party Party/C series 1.2" heel.

Model P575 (Tango Stiletto) fits: Any tango heels, Limited & Stiletto Heels Edition 3.5" black plated stiletto/3" stiletto heel.

How to identify which style is what series:
Classic series: style # starts with a numerical number
Signature series: style # starts with letter "S"
Party Party series: style # starts with letters "PP"
C series: style # starts with letter "C"
Salsera series: style # starts with letters "SERA"
Competitive Dancer series: style # starts with letters "CD"
Limited & Stiletto Heels Edition: style # ends with suffix "LEDSS"