Two options for the modification to the connector pegs (b) to allow for insertion of the specimen pin: a 3 mm diameter tube with 0.1 mm nylon fibers (a+b); or a small plastazote plug (b+c).

 
 
  Part of: Dupont S, Price B, Blagoderov V (2015) IMp: The customizable LEGO┬« Pinned Insect Manipulator. ZooKeys 481: 131-138. https://doi.org/10.3897/zookeys.481.8788