Looks like this insert set wasn't added. Someone will have to add it.
From baseballcardpedia:
Pieces Auto Relics
Each Pieces Auto Relic is serial-numbered to 99 copies and also available in the following parallels.
- Orange (serial-numbered to 25 copies; Wax only)
- FoilFractor (one-of-one)
- PPAR-AV Anthony Volpe
- PPAR-CC Corbin Carroll
- PPAR-DC Diego Cartaya
- PPAR-ED Elly De La Cruz
- PPAR-FA Francisco Álvarez
- PPAR-GH Gunnar Henderson
- PPAR-JC Jackson Chourio
- PPAR-JD Jasson Domínguez
- PPAR-JL Jordan Lawlar
- PPAR-JW Jordan Walker
- PPAR-MH Michael Harris II
- PPAR-MT Mike Trout
- PPAR-OC Oscar Colás
- PPAR-OP Oswald Peraza
- PPAR-RA Ronald Acuña, Jr.
- PPAR-RG Riley Greene
- PPAR-VG Vladimir Guerrero, Jr.