STUK box with compartments, white, 7 ¾x13 ½x4" - IKEA
Amazon.com: Set of 3 Dividers for IKEA SKADIS Pegboard Clear Container Cups - Small Parts Organization and Wall Mounted Storage (Set of 3 Quad Dividers, Black) : Handmade Products
3 Dividers for IKEA SKADIS Pegboard Clear Container Cups - Small Parts Organizer | eBay