About this 3D model
A simple stand for 4 pocket knives. the width is 120mm. I think it shouldn't be a problem to scale the width of the stand for smaller or larger pocket knives. Feel free to write any suggestions for improvement in the comments :) I have made a bigger version that fits 9 Pocket Knifes: https://makerworld.com/en/models/1495146-pocket-knife-display-stand-max-height#profileId-1563368