All the holes were the same depth. Completely useless as a mounting block. I know they all look different depths in the picture, but as far as I can tell they pressed these brass tubes into holes in the front and drilled the same depth behind each one.
πͺ² Phusis Stainless Steel Entomology Pins
3 Review
π Insect Collection Display Case with Clear Glass Top for Science Education - Bug Collection Box
3 Review
Exquisite Insect π¦ Display: Acrylic Entomology Specimen Showpiece
3 Review
UKCOCO Stainless Entomology Butterfly Collectors: Efficient Solution for Entomologists and Naturalists
3 Review
π Musculoskeletal Anatomy Chart by Palace Learning
3 Review
Anatomical Chart of Spinal Nerves and Dermatomes
3 Review
𦴠Explore the Intricacies of Human Skeleton with the Movable Skeleton Anatomy Model
3 Review
π§ Enhancing Anatomy Learning: Portable & Detachable Enlarged Anatomical Education Aid for Students
3 Review