Based on this product's specifications, here are some alternatives and similar models
Protective Hard Case Foam Insert by Calumet for Case Model 4821
Summary description:
Foam insert manufactured by Calumet for hard cases compatible with model 4821. Designed to provide internal cushioning and organization for equipment, the insert offers cuttable foam layers to adapt compartments to cameras, lenses, accessories or other fragile items. Intended to reduce impact and abrasion during transport and storage.