The racks are sized to hold standard 2oz acrylic hobby paint bottles like Apple Barrel, Createx, DecoArt, Anita's, FolkArt etc.
IKEA Skadis Pegboard - Paint Bottle Holder by TheRooster
SKΓ DIS Pegboard, white, Width: 14 ΒΌ Height: 22 - IKEA
paint bottle holder 3D Models to Print - yeggi
Hobby Storage - Ikea Skadis Peg Board Dropper Bottle Acrylic Paint
paint rack 35mm 3D Models to Print - yeggi
Hobby Storage - 2 oz Acrylic Paint Racks Holders for Peg Board
29 Unbelievably Useful Camper and RV Storage Ideas
Hobby Storage - 2 oz Acrylic Paint Racks Holders for Ikea Skadis Peg Board
craft paint holder 3D Models to Print - yeggi
Hobby Storage - 2 oz Acrylic Paint Racks Holders for Ikea Skadis
These are Tamiya Paint Holders for use on IKEA Skadis pegboard