This is a sleeve for the 16 Spanner holder by IgnisRex (https://makerworld.com/en/models/199969#profileId-220528)

As I have quite a few wrenches rather than spanners not all my wrenches/spanners fit perfectly. So spanners won't fall out of the spanner holder when everything is in the tool box I designed this sleeve to hold everything in place. The sleeve has a wedge shaped closing mechanism on the small side of the sleeve.

I've printed the sleeve in PLA as this was what I had at hand.

Note: This model needs support for the gap + the pin in front of the edge shaped closing mechanism. The gap is 0.4mm - For removing the support in between the gap I have used pliers to gently move the teeth of the closure mechanism to break the support.